These settings configure the behavior of the comments framework:
If True (default), removed comments will be excluded from comment lists/counts (as taken from template tags). Otherwise, the template author is responsible for some sort of a “this comment has been removed by the site staff” message.
The maximum length of the comment field, in characters. Comments longer than this will be rejected. Defaults to 3000.
The app (i.e. entry in INSTALLED_APPS) responsible for all “business logic.” You can change this to provide custom comment models and forms, though this is currently undocumented.
Dec 10, 2008