diff --git a/boards/config/default_settings.ini b/boards/config/default_settings.ini
--- a/boards/config/default_settings.ini
+++ b/boards/config/default_settings.ini
@@ -16,6 +16,7 @@ PowDifficulty = 0
 # Delay in seconds
 PostingDelay = 30
 Autoban = false
+DefaultTag = test
 
 [Messages]
 # Thread bumplimit
diff --git a/boards/forms.py b/boards/forms.py
--- a/boards/forms.py
+++ b/boards/forms.py
@@ -435,8 +435,11 @@ class ThreadForm(PostForm):
                 break
 
         if not required_tag_exists:
-            raise forms.ValidationError(
-                _('Need at least one section.'))
+            default_tag_name = board_settings.get('Forms', 'DefaultTag')\
+                    .strip().lower()
+            default_tag, created = Tag.objects.get_or_create(
+                    name=default_tag_name, required=True)
+            tag_set.add(default_tag)
 
         return tag_set