I know the difference, nonetheless I still use the incorrect usage too often...
I unfortunately drop words from a sentence and when I read the sentence back to myself I still "see" the missing words - so I don't fix them. Only when I come back after a minute or two does the misuse or missing word stand out.
So either I comment with my faults or I don't comment at all. So I don't judge others too harshly on that front...
I try very hard not to be pedantic on here. My typing sucks, so I come off as illiterate sometimes as well.
That one just stuck in my craw. As you can see, I did it with an apologetic caveat.
If I had a nickel for every time I've refrained from correcting the one that I really have a pet peeve with, which is the use of apostrophes for plurals, I wouldn't have to be a dumbass "stuck in Iraq." (We're getting some mileage out of that one here...LOL)