I confess I'm guilty of this. I can't help it.
It drives me nuts when incorrect words or grammar are used, it's just the way I am, have pity. We all have faults and I point it out (at times) in the hope of educating someone, not to be clever. Some people have incorrect grammar, and some can't help but point it out! So I'd like to say sorry to anyone I may have annoyed (or have yet to lol).