Ongoing issues with EA's systems mean flaming a forum has nastier consequences than usual.
Rock Paper Shotgun has collated a number of recent reports of players receiving permanent bans from the EA forums, resulting in a lock out from their Origin accounts and all the purchased games therein - including Battlefield 3.
EA is yet to respond with comment, and customer service has been unable to provide assistance beyond continuing to state that affected users have violated the forum terms and services. Concerningly, many users report lifetime bans which appear to skip several steps in EA's policy or arbitrarily apply inappropriate guidelines - but then again nobody ever thinks they deserve a ban.
The Origin lock out was described as an "error" by EA when the problem was first noted in March, but recent incidents suggest a fix is yet to be implemented.