Is that bad? I'm not even sure. It just bothers me. I can't stand when people abbreviate words pointlessly, like to(o) -> 2, or for -> 4, or misspell things intentionally to be cute or cool or trendy or whatever.
(Incidentally, if this post is guilty of sounding somewhat incoherent itself, I'm blaming it on the 4 hours of sleep a night I've been averaging recently, and the fact that I'm on the verge of passing out. Bleh.)