Renderosity ceded these forums to the trolls long ago,  either because it matched the general atmosphere in the office or because they thought it made good business sense to encourage the unrelenting bashing of their competition/lifeblood. 

How many pages did a thread called "another dud from daz" last only to be locked once it "stopped being positive"?  It was only at the point that one of the anti-daz messages was discredited that the thread became too negative to continue, when it's whole purpose was negativity from the start.  Heck, if the members aren't starting enough Daz bashing threads on their own, moderators will step in and pick up the slack.

If you wonder about other forums, I've got my own sour grapes with Rendo,  but when I behave like the trolls here, when I make an anti-renderosity comment at Daz, they moderate me. Here that kind of negativity is fostered and encouraged.  You wonder about the cause, it's just what Renderosity is.  Maybe the right staff changes have just finally brought it to the surface these last few years.

@Daz3d
@ShareCG