Almost all netspeak annoys me (except handy abbreviations like "wtf?" and "lol"), but it definitely depends on the degree. The shortenings that are still mostly legible, like "ur" and "wut," make me cringe, but I can deal if I know the person is otherwise an intelligent speaker (If I don't already know the person, I tend to hold it against them - double standard, I know). But then there's the stuff you see on fanfiction.net or MySpace, where almost every word is netspoken to the point that reading it is like deciphering some sort of code ("heres sumfin 2 sho u wat i mean"). That kind of crap just says to me, "I don't give a damn whether or not you can read this; I just wanted to save three seconds of my time." If you're in IM or chat, that's one thing - the faster you can type, the better. But if you're posting in a blog, or an actual profile that's gonna be the face you present to the world, I don't see any justification for typing like you're racing the clock.