Another one of the things that bother me, albeit not so much as the very bad naming, is punctuation and spelling. Call me "miss grammar snob", go ahead, I'll enjoy it. I'm not saying I'm perfect or that I'll nitpick on your every move, but make an effort, people! I don't want to decipher whatever you tell me. This grates even more when you're an adult, 'y, no (know), rite, u' not cute, not cute when you're a teenager even, but even less so if you're a grown human being.
And use spell check, easy peasy and it doesn't chop off bits of my soul slowly. I can forgive the occasional 'teh'. but i can't frogive u talkin lyk diz 2 me all teh tym. *soul dies* See, now look what you've made me do.

Sincerely,
Your grammar snob. (of course taken with a pinch of salt, maybe )