Earlier today I performed a cleanup of a LARGE number of user accounts that had signed up and never posted (aka spammers mostly). If your account was deleted - and you aren't a spammer - sign back up and post something so we know you're not. Lurkers get to see the same thing as logged in users, so don't worry that you're missing out on something for not having an account if that's the only reason you signed up.
Planescape, Dungeons & Dragons, their logos, Wizards of the Coast, and the Wizards of the Coast logo are ©2008, Wizards of the Coast, a subsidiary of Hasbro Inc. and used with permission.