Yeah, I like when people spell right, but a spelling mistake every now and then is alright. As for grammar, I never use it correctly myself... well at least follow the rules of it exactly. So I cut some more slack, but when every post becomes "zomg how do i shot web!" or similar it gets quite annoying. Plus on the internet the only realy way to show maturity is via correctness in writing, along with the vocabulary used.
*rant off*
liek lolx i liev nex ta babysugarbear! mayB we kan liek say HI or sumthin an hoep u dun bit mah arm off!?!