I'm the self-appointed Queen of Pedants' Corner, so let me through please.
Firstly, PC also gives short shrift to twats like those on this thread who think it's a place where they can heehaw and pat themselves on their (rather inadequately educated) smug little backs about how fick innit the rest of MN is. We just like words. Which we like to use correctly.
Secondly, I've only skimmed this thread because I've already been doing battle on the other twatathon this morning, but, as I said on that one, if AwakeCan'tSleep, FarFromAnyRoad, ConfusedInBath, MrsTawdry, Lulu (of course) Icimoi and Bruffin want to PM me, I can give you a rundown of your own extremely elementary language errors.
Thirdly, as others have noted, the "anti-grammar" people do tend to be confident users of the language themselves. They're just not twats who clearly have so little self-worth and so large an inferiority complex that they get some sort of kick out of belittling someone else. They're pitiful really.
Mintyy/Pag- I've been reporting them for years. One particularly vicious TAAT was deleted, but only because it was a TAAT. The OP of that thread subsequently flounced and accused me of being a bully. The irony wasn't lost.