It's up to them, isn't it? Condemning a whole profession because they don't hang out online in a forum that is sometimes hostile to them is a little strong to me.

Have you ever looked at the medical question websites where people write in with their symptoms and real doctors answer? The doctors almost always end up saying "see your doctor," whether they're worried or not. Otherwise they could be doing the posters harm. Same with therapists. A production pro is not likely to do someone damage if they give bad advice.