I am afraid Shakespeare would not have been impressed by the dialogues on either of these two sites. To some extent I shared your experiences I had attacks or sparring sessions here and there. Especially since you are a professional you should realize that each of these forums have hundreds of readers, most of them silent, and while some could be attacking you or testing your patience, they don't necessarily represent the majority. As long as what you say is reasonable and coherent you should stay your ground and trust that many potential clients will sympathize. Many forums have a vocal minority which can be scary. What does not kill you makes you stronger.