It also gets old when someone is always telling people they're doing it wrong, or frequently implying everything they own, or do (ad nauseum) is the best.
I can admit me being nit picky about spelling is a bit, well, nit picky, but it is a pet peeve of mine to refer to something by something that is isn't, instead of what it is, especially when the correct way is well known. It is akin to some guys I work with.....no matter many times they hear a co-workers name pronounced correctly, they will not pronounce correctly.