mzpeekabooicu - Sorry to break into the happy gathering, but I feel the need to comment.
I understand your wish not to have negitivity, but such is an aspect of webforums and ocne we can try to avoid but not remove. To post that mean people may not post on your thread is, frankly, not going to happen and you only incite them.
Let me also ask you not to use solid caps in your topics and not to use 80thousand exclimation points. I promise, one does the job.
Technicaly, posting threads that say "mean people don't post here" or "only nice posts belong" is not against the rules, but it is not going to help your cause in anyway and only opens you up for harassment in the end.