*Sigh* I know this website and it's members pride themselves with having good vocabulary and good grammar, but can we go two weeks without a thread stating the impending doom of the website just because some people have had some grammatical mistakes in their posts. [/rant.]
On topic, I am only a grammar Nazi to myself, I try to use proper grammar as often as possible, sometimes a typo or two slip by me, after I post but I usually go back and re-edit the post to remove the typos, that isn't to say that I have good punctuation, normally I overuse the comma somewhat, and besides the apostrophe, period, and question mark I don't really bother with the rest of them unless I'm forced to.
I do not however try to correct other members spelling, how they spell is their own business, if I can't read the post then I just skip it,I don't go on a tirade berating the poor guy just because he made a typo on commonly misspelled words, although, since I joined back in September there hasn't been a single post I haven't been able to coherently read from any other member new or old.