You know you're a grammar Nazi when you read the above and realise that:
1) flamebirde was correct; it's "you're"
2) Brainiac probably didn't realise that everyone else would misread brainy's 'One-Up Me' and assume that brainy was incapable of correcting sentences
3) flamebirde has become self-conscious about writing a forum post because of brainy
4) marksmanjay's re-correction of flamebirde's statement is oddly funny
5) EDM didn't put a period after each point, and will not do so as she is not a grammar Nazi
6) EDM has referred to herself in 3rd person while typing these points