diff --git a/boards/middlewares.py b/boards/middlewares.py
--- a/boards/middlewares.py
+++ b/boards/middlewares.py
@@ -11,7 +11,9 @@ class BanMiddleware:
 
         if view_func != views.you_are_banned:
             ip = utils.get_client_ip(request)
-            is_banned = Ban.objects.filter(ip=ip).exists()
+            bans = Ban.objects.filter(ip=ip)
 
-            if is_banned:
-                return redirect(views.you_are_banned)
\ No newline at end of file
+            if bans.exists():
+                ban = bans[0]
+                if not ban.can_read:
+                    return redirect(views.you_are_banned)
\ No newline at end of file
diff --git a/boards/models.py b/boards/models.py
--- a/boards/models.py
+++ b/boards/models.py
@@ -16,6 +16,10 @@ import thumbs
 
 import re
 
+BAN_REASON_MAX_LENGTH = 200
+
+BAN_REASON_AUTO = 'Auto'
+
 IMAGE_THUMB_SIZE = (200, 150)
 
 TITLE_MAX_LENGTH = 50
@@ -416,6 +420,9 @@ class Setting(models.Model):
 class Ban(models.Model):
 
     ip = models.GenericIPAddressField()
+    reason = models.CharField(default=BAN_REASON_AUTO,
+                              max_length=BAN_REASON_MAX_LENGTH)
+    can_read = models.BooleanField(default=True)
 
     def __unicode__(self):
         return self.ip
diff --git a/boards/templates/boards/base.html b/boards/templates/boards/base.html
--- a/boards/templates/boards/base.html
+++ b/boards/templates/boards/base.html
@@ -34,7 +34,7 @@
     <a class="link" href="{% url 'index' %}">{% trans "All threads" %}</a>
     {% for tag in tags %}
         <a class="tag" href="{% url 'tag' tag_name=tag.name %}"
-                >#{{ tag.name }}</a>
+                >#{{ tag.name }}</a>,
     {% endfor %}
     <a class="tag" href="{% url 'tags' %}" title="{% trans 'Tag management' %}"
             >[...]</a>
diff --git a/boards/templates/boards/posting_general.html b/boards/templates/boards/posting_general.html
--- a/boards/templates/boards/posting_general.html
+++ b/boards/templates/boards/posting_general.html
@@ -91,7 +91,8 @@
                         {% for tag in thread.thread.get_tags %}
                             <a class="tag" href="
                                     {% url 'tag' tag_name=tag.name %}">
-                                #{{ tag.name }}</a>
+                                #{{ tag.name }}</a
+                                    >{% if not forloop.last %},{% endif %}
                         {% endfor %}
                     </span>
                 {% endif %}
diff --git a/boards/templates/boards/staticpages/banned.html b/boards/templates/boards/staticpages/banned.html
--- a/boards/templates/boards/staticpages/banned.html
+++ b/boards/templates/boards/staticpages/banned.html
@@ -9,4 +9,5 @@
 {% block staticcontent %}
     <p><img src="{{ STATIC_URL }}images/banned.png" width="200" /></p>
     <p>{% trans 'Your IP address has been banned. Contact the administrator' %}</p>
+    <p>{{ ban_reason }}</p>
 {% endblock %}
\ No newline at end of file
diff --git a/boards/templates/boards/thread.html b/boards/templates/boards/thread.html
--- a/boards/templates/boards/thread.html
+++ b/boards/templates/boards/thread.html
@@ -76,12 +76,13 @@
 		    </div>
 		{% endif %}
             </div>
-            {% if post.id == posts.0.id %}
+            {% if forloop.first %}
                 <div class="metadata">
                     <span class="tags">
                         {% for tag in post.get_tags %}
                             <a class="tag" href="{% url 'tag' tag.name %}">
-                                #{{ tag.name }}</a>
+                                #{{ tag.name }}</a
+                                    >{% if not forloop.last %},{% endif %}
                         {% endfor %}
                     </span>
                 </div>
diff --git a/boards/views.py b/boards/views.py
--- a/boards/views.py
+++ b/boards/views.py
@@ -22,6 +22,8 @@ from boards.utils import get_client_ip
 import neboard
 import re
 
+BAN_REASON_SPAM = 'Autoban: spam bot'
+
 
 def index(request, page=0):
     context = _init_default_context(request)
@@ -317,7 +319,10 @@ def ban(request, post_id):
 
     if user.is_moderator():
         # TODO Show confirmation page before ban
-        Ban.objects.get_or_create(ip=post.poster_ip)
+        ban, created = Ban.objects.get_or_create(ip=post.poster_ip)
+        if created:
+            ban.reason = 'Banned for post ' + str(post_id)
+            ban.save()
 
     return _redirect_to_next(request)
 
@@ -326,6 +331,9 @@ def you_are_banned(request):
     """Show the page that notifies that user is banned"""
 
     context = _init_default_context(request)
+
+    ban = get_object_or_404(Ban, ip=utils.get_client_ip(request))
+    context['ban_reason'] = ban.reason
     return render(request, 'boards/staticpages/banned.html', context)
 
 
@@ -470,11 +478,16 @@ def _redirect_to_next(request):
         return redirect(index)
 
 
+@transaction.commit_on_success
 def _ban_current_user(request):
     """Add current user to the IP ban list"""
 
     ip = utils.get_client_ip(request)
-    Ban.objects.get_or_create(ip=ip)
+    ban, created = Ban.objects.get_or_create(ip=ip)
+    if created:
+        ban.can_read = False
+        ban.reason = BAN_REASON_SPAM
+    ban.save()
 
 
 def _remove_invalid_links(text):
diff --git a/todo.txt b/todo.txt
--- a/todo.txt
+++ b/todo.txt
@@ -4,6 +4,8 @@
 [DONE] Better django admin pages to simplify admin operations
 [DONE] Regen script to update all posts
 [DONE] Remove jump links from refmaps
+[DONE] Ban reasons. Split bans into 2 types "read-only" and "read
+denied". Use second only for autoban for spam
 
 [NOT STARTED] Tree view (JS)
 [NOT STARTED] Adding tags to images filename
@@ -20,8 +22,6 @@
 [NOT STARTED] Clean up tests and make them run ALWAYS
 [NOT STARTED] Save image thumbnails size to the separate field
 [NOT STARTED] Whitelist functionality. Permin autoban of an address
-[NOT STARTED] Ban reasons. Split bans into 2 types "read-only" and "read
-denied". Use second only for autoban for spam
 
 = Bugs =
 [DONE] Fix bug with creating threads from tag view