diff --git a/boards/middlewares.py b/boards/middlewares.py
--- a/boards/middlewares.py
+++ b/boards/middlewares.py
@@ -6,6 +6,8 @@ from django.utils import timezone
 from boards import utils
 from boards.models import Ban
 
+SESSION_TIMEZONE = 'django_timezone'
+
 RESPONSE_CONTENT_TYPE = 'Content-Type'
 
 TYPE_HTML = 'text/html'
@@ -34,7 +36,7 @@ class BanMiddleware:
 
 class TimezoneMiddleware(object):
     def process_request(self, request):
-        tzname = request.session.get('django_timezone')
+        tzname = request.session.get(SESSION_TIMEZONE)
         if tzname:
             timezone.activate(pytz.timezone(tzname))
         else:
diff --git a/boards/profiler.py b/boards/profiler.py
deleted file mode 100644
--- a/boards/profiler.py
+++ /dev/null
@@ -1,26 +0,0 @@
-import sys
-from cStringIO import StringIO
-from django.conf import settings
-import line_profiler
-
-
-class ProfilerMiddleware():
-    def __init__(self):
-        self.profiler = None
-
-    def process_view(self, request, callback, callback_args, callback_kwargs):
-        if settings.DEBUG and 'prof' in request.GET:
-            self.profiler = line_profiler.LineProfiler()
-            self.profiler.add_function(callback)
-            self.profiler.enable()
-            args = (request,) + callback_args
-            return callback(*args, **callback_kwargs)
-
-    def process_response(self, request, response):
-        if settings.DEBUG and 'prof' in request.GET:
-            out = StringIO()
-            old_stdout, sys.stdout = sys.stdout, out
-            self.profiler.print_stats()
-            sys.stdout = old_stdout
-            response.content = '<pre>%s</pre>' % out.getvalue()
-        return response
diff --git a/boards/urls.py b/boards/urls.py
--- a/boards/urls.py
+++ b/boards/urls.py
@@ -1,16 +1,16 @@
-from django.conf.urls import patterns, url, include
-from django.contrib import admin
+from django.conf.urls import patterns, url
+
 from boards import views
 from boards.rss import AllThreadsFeed, TagThreadsFeed, ThreadPostsFeed
 from boards.views import api, tag_threads, all_threads, \
     settings, all_tags
 from boards.views.authors import AuthorsView
-from boards.views.ban import BanUserView
 from boards.views.notifications import NotificationView
 from boards.views.search import BoardSearchView
 from boards.views.static import StaticPageView
 from boards.views.preview import PostPreviewView
 
+
 js_info_dict = {
     'packages': ('boards',),
 }
@@ -38,7 +38,6 @@ urlpatterns = patterns('',
     url(r'^settings/$', settings.SettingsView.as_view(), name='settings'),
     url(r'^tags/(?P<query>\w+)?/?$', all_tags.AllTagsView.as_view(), name='tags'),
     url(r'^authors/$', AuthorsView.as_view(), name='authors'),
-    url(r'^ban/(?P<post_id>\w+)/$', BanUserView.as_view(), name='ban'),
 
     url(r'^banned/$', views.banned.BannedView.as_view(), name='banned'),
     url(r'^staticpage/(?P<name>\w+)/$', StaticPageView.as_view(),
diff --git a/boards/views/ban.py b/boards/views/ban.py
deleted file mode 100644
--- a/boards/views/ban.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from django.db import transaction
-from django.shortcuts import get_object_or_404
-
-from boards.abstracts.settingsmanager import PERMISSION_MODERATE, \
-    get_settings_manager
-from boards.views.base import BaseBoardView
-from boards.models import Post, Ban
-from boards.views.mixins import RedirectNextMixin
-
-
-class BanUserView(BaseBoardView, RedirectNextMixin):
-
-    @transaction.atomic
-    def get(self, request, post_id):
-        post = get_object_or_404(Post, id=post_id)
-
-        settings_manager = get_settings_manager(request)
-
-        if settings_manager.has_permission(PERMISSION_MODERATE):
-            # TODO Show confirmation page before ban
-            ban, created = Ban.objects.get_or_create(ip=post.poster_ip)
-            if created:
-                ban.reason = 'Banned for post ' + str(post_id)
-                ban.save()
-
-        return self.redirect_to_next(request)
diff --git a/boards/views/mixins.py b/boards/views/mixins.py
--- a/boards/views/mixins.py
+++ b/boards/views/mixins.py
@@ -1,25 +1,6 @@
 PARAM_NEXT = 'next'
 PARAMETER_METHOD = 'method'
 
-from django.shortcuts import redirect
-from django.http import HttpResponseRedirect
-
-
-class RedirectNextMixin:
-
-    def redirect_to_next(self, request):
-        """
-        If a 'next' parameter was specified, redirect to the next page. This
-        is used when the user is required to return to some page after the
-        current view has finished its work.
-        """
-
-        if PARAM_NEXT in request.GET:
-            next_page = request.GET[PARAM_NEXT]
-            return HttpResponseRedirect(next_page)
-        else:
-            return redirect('index')
-
 
 class DispatcherMixin:
     """
diff --git a/boards/views/notifications.py b/boards/views/notifications.py
--- a/boards/views/notifications.py
+++ b/boards/views/notifications.py
@@ -1,11 +1,13 @@
 from django.shortcuts import render
+
 from boards.abstracts.paginator import get_paginator
 from boards.abstracts.settingsmanager import get_settings_manager, \
     SETTING_USERNAME, SETTING_LAST_NOTIFICATION_ID
-from boards.models import Post
 from boards.models.user import Notification
 from boards.views.base import BaseBoardView
 
+DEFAULT_PAGE = '1'
+
 TEMPLATE = 'boards/notifications.html'
 PARAM_PAGE = 'page'
 PARAM_USERNAME = 'notification_username'
@@ -26,7 +28,7 @@ class NotificationView(BaseBoardView):
         notification_username = username.lower()
 
         posts = Notification.objects.get_notification_posts(
-                username=notification_username)
+            username=notification_username)
         if notification_username == my_username:
             last = posts.first()
             if last is not None:
@@ -36,7 +38,7 @@ class NotificationView(BaseBoardView):
 
         paginator = get_paginator(posts, RESULTS_PER_PAGE)
 
-        page = int(request.GET.get(REQUEST_PAGE, '1'))
+        page = int(request.GET.get(REQUEST_PAGE, DEFAULT_PAGE))
 
         params[PARAM_PAGE] = paginator.page(page)
         params[PARAM_USERNAME] = notification_username
diff --git a/boards/views/preview.py b/boards/views/preview.py
--- a/boards/views/preview.py
+++ b/boards/views/preview.py
@@ -23,7 +23,7 @@ class PostPreviewView(View):
         return render(request, TEMPLATE, context_instance=context)
 
     def post(self, request):
-        context = RequestContext(request)
+        params = dict()
 
         if FORM_QUERY in request.POST:
             raw_text = request.POST[FORM_QUERY]
@@ -32,8 +32,7 @@ class PostPreviewView(View):
                 parser = Parser()
                 rendered_text = parser.parse(parser.preparse(raw_text))
 
-                context[CONTEXT_RESULT] = rendered_text
-                context[CONTEXT_QUERY] = raw_text
+                params[CONTEXT_RESULT] = rendered_text
+                params[CONTEXT_QUERY] = raw_text
 
-        # TODO Use dict here
-        return render(request, TEMPLATE, context_instance=context)
+        return render(request, TEMPLATE, params)
diff --git a/boards/views/settings.py b/boards/views/settings.py
--- a/boards/views/settings.py
+++ b/boards/views/settings.py
@@ -1,14 +1,14 @@
-import pytz
-
 from django.db import transaction
 from django.shortcuts import render, redirect
 from django.utils import timezone
 
 from boards.abstracts.settingsmanager import get_settings_manager, \
     SETTING_USERNAME, SETTING_LAST_NOTIFICATION_ID
+from boards.middlewares import SESSION_TIMEZONE
 from boards.views.base import BaseBoardView, CONTEXT_FORM
 from boards.forms import SettingsForm, PlainErrorList
 
+
 FORM_THEME = 'theme'
 FORM_USERNAME = 'username'
 FORM_TIMEZONE = 'timezone'
@@ -30,7 +30,8 @@ class SettingsView(BaseBoardView):
             initial={
                 FORM_THEME: selected_theme,
                 FORM_USERNAME: settings_manager.get_setting(SETTING_USERNAME),
-                FORM_TIMEZONE: request.session.get('django_timezone', timezone.get_current_timezone()),
+                FORM_TIMEZONE: request.session.get(
+                    SESSION_TIMEZONE, timezone.get_current_timezone()),
             },
             error_class=PlainErrorList)
 
@@ -56,7 +57,7 @@ class SettingsView(BaseBoardView):
                     settings_manager.set_setting(SETTING_USERNAME, username)
                     settings_manager.set_setting(SETTING_LAST_NOTIFICATION_ID, None)
 
-                request.session['django_timezone'] = form.cleaned_data[FORM_TIMEZONE]
+                request.session[SESSION_TIMEZONE] = form.cleaned_data[FORM_TIMEZONE]
 
                 return redirect('settings')
             else:
diff --git a/boards/views/tag_threads.py b/boards/views/tag_threads.py
--- a/boards/views/tag_threads.py
+++ b/boards/views/tag_threads.py
@@ -4,7 +4,7 @@ from boards.abstracts.settingsmanager im
         SETTING_FAVORITE_TAGS, SETTING_HIDDEN_TAGS
 from boards.models import Tag
 from boards.views.all_threads import AllThreadsView, DEFAULT_PAGE
-from boards.views.mixins import DispatcherMixin, RedirectNextMixin
+from boards.views.mixins import DispatcherMixin
 from boards.forms import ThreadForm, PlainErrorList
 
 PARAM_HIDDEN_TAGS = 'hidden_tags'
@@ -15,7 +15,7 @@ PARAM_IS_HIDDEN = 'is_hidden'
 __author__ = 'neko259'
 
 
-class TagView(AllThreadsView, DispatcherMixin, RedirectNextMixin):
+class TagView(AllThreadsView, DispatcherMixin):
 
     tag_name = None