As an occasional D20 freelancer, I have to say this kind of attitude really gives you pause when considering posting in public forums. Somebody is bound to disagree with you on something, so the message is if you have any contraversial ideas, you better keep it to yourself or get a well disguised pseudonym.
I once started a thread here on ENworld with my old account. The thread was critical about certain very minor aspects of 3.0 D&D at the time, and so naturally got a lot of people hopping mad. I ended up having several people say flat out that they wanted to boycott my products and those of any publisher who hired me because I was adressing what I though was a problem with D&D (a problem which Monte Cook wrote about in exactly the same way mind you).
I think the net result is that writers often keep to themselves unless they are so well established that they have their own significant support base already. I think thats kind of depressing.
Personally, for what it's worth, I'll buy any product if I think it's good, no matter what the writers private opinions. I even bought a book written by a guy who trashed one of my own books in an ambush review. I beleive in free speech and free thinking.
BD