Using slang terms or bad sentence structure can slide...
Acceptable: Whateva, yea/h, tho, 4, cuz, I'ma, ya'll (y'all<-- actual spelling), yadada, blah blah blah. Any form of type-o doesn't bother me. Improper punctuation, lack of attention to capitalization: all typical on the internet. Doesn't bother me much. I can understand its sometimes about speed rather than quality- similar to Roz' sex life.
but when dudes keep constantly misspelling words and don't know how to properly articulate their thoughts through reading and writing, it irritates me. Even if spelling and grammar isn't your thing- mathematicians and astrophysicists learn how to spell commonly used words.
I never correct somebody's spelling to talk shit to them, I do it to try and educate them. After all, there was a time once in my life when I couldn't spell certain words... like when I was 7 or 8.
Git wit da timez bruh!