I am not a grammar nazi, because I don't have a huge stick up my bum, nor an "holier then thou" attitude. Also I'm not English by birth, so affcorse there's gonna be mistakes in my posts.
Those nazi's need to get over themselves, it's realy quite pathetic that they have to feel superiour in such a small way, because that's all it is, realy, it's a "look I am smarter then you" attitude, let's not hide it under semi-noble ideas like "we must save the English language!"
TL;DR: I'm the sort of asshole who won't consider you a human being without at least an attempt at correct spelling and grammar.
Does that make you feel proud of yourself? It's not realy any acomplishment, you know, just people on the internet that have less of a grasp on a language then you do. Maybe the people that offend your bum so much are not English? Or dyslexic? But no, affcorse not. You described yourself very accuratly.