mxyzplk
Explorer
You know, any speculation about mxyzplk's agenda aside, he's basically correct. A fan site built around a company's (or individual's) IP absolutely exists at the IP owner's pleasure, unless it is very, very careful about its content.
Does that mean WotC is going to shut down ENWorld? Why would it? ENWorld's relationship to the D&D brand is positive and both sides benefit. So long as that remains the case, why would WotC take draconian steps?
It seems (and I have no direct experience) that Ema overstepped the appropriate bounds of his relationship with D&D. WotC acted in a manner that seems (again, no direct experience) pretty appropriate. Nothing that has happened indicates any sort of sea change in WotC policy.
Yes, WotC could almost certainly shut down ENWorld if it suddenly got the urge. If you don't like that, there's a simple way to avoid it happening: Continue to support ENWorld as the cordial, welcoming, non-IP-abusing site it's always been. I don't think WotC's ever going to come after ENWorld unless given a very, very compelling reason.
I definitely have an "agenda" in that I dislike 4e and think that Wizards' retreat from the OGL and openness in general is a threat to D&D, the gaming industry, and gamers like ourselves. So I own up there.
But is the solution really "be a site that Wizards likes?" Sure, ENWorld may pull that off, but is that the answer to the thousand other fansites? "You can exist as long as they like you?"
That's like saying "I don't see anything wrong with slavery, I'm the favored house slave! No beatings for me!" It only lasts as long as you're in good with the master, and sure doesn't help the other individuals.