I am going to say again, the forums that most of the nastiness is one wouldn't be that way if people who have no sincere interest in purchasing a puppy would just stay out of the for sale thread. seems to me that there are a handful of people that just troll the for sale forum looking for something to say and they have no interest in buying at all. If i were administration i would put a sticky at the top of that page telling people to only reply if they are interested in a puppy. I have seen it on other forums and it works pretty well. No nastiness. The breeders forum? well, as a new breeder I have been on the receiving end of a few smart comments myself but I am now on that persons "Ignore" list and she is on mine.
I do think that the site administrators here do a fantastic job. I just wish they would stop some of these posters that interject where they shouldn't even be as soon as they start.