According to a post in the Red Alert 3 forum by 'eeapoc' (Apparently, C&C Community Manager Aaron Kaufman) EA is implementing a new policy that will tie your forum login to your Master EA Account. If you get hit with the ban hammer for misbehaving in a forum, you could find that you are locked out of your purchased games as well.
Now isn't that a fine way to sweeten the DRM pill .
Not that i personally would bother enough to join such forums(hell, it might be a good way to discourage the users i expect in such official forums), it is not unlikely that in the future you could get banned for pretty much anything if they feel like it.