Quote Originally Posted by mattiooo View Post
My guess would be negative feedback should be considered before you deal with someone in the first place.

While incredibly frustrating - it's someone's right to decide not to pursue a transaction. However, keep leaving feedback, and people will eventually not even bother with beginning discussions.

I definitely check feedback now before I start dealing with someone, whether to buy or sell.
While I agree with you, enough inappropriate behavior anywhere on the forum is grounds for a time out and possibly banning. Is negative behavior outside of the forum, by way of the forum not equally bad? Food for thought.