I may be the only person who is slightly bothered by forum posts with ALL CAPS TITLES. If not, it would be nice to have all post title inputs converted to title case when submitted (instead of uppercase). This would be a pretty straightforward coding exercise.
I wanted to say 5 but that seemed a bit much. I think if you were to draw a bell curve of all the lame shit like "what camalots should I buy?" somewhere around 80% is in the 3 or less category. I suggest not letting anyone post for a least a year after they join.