Yeah. I agree with both Lord Raa in that, since this is fanfiction, I'm not going to expect perfect grammar. Heck, if that was the case, than I would be guilty as sin when it came to grammar as well.
I just, want what you might call, a medium of sorts (something Israfel was alluding to I guess), while I'm not expecting a "sequel to the Illiad", I'm also not going to go for the pure shit that populate a big portion of FFN. And the the very basic level, decent grammar and spelling should suffice in any story I read.