Well, you could sign up as someone else, get caught and then permanently banned. But it won't remove any posts you have made, there will just be a "banned" designator under your user name.
At some point down the road though, you may have a question that someone here may have a decent answer for. Taking a voluntary break from the forum, without burning any bridges is probably your best bet.
Bear Cub, Hepsi-Pepsi
Cujo2, Karma Chameleon
Ramona the Pest, Kojak -- who loves you baby?
Tiny Tinnie, Susie's Uzzi, Kaiah -- The Baby Monster.