Something that I've noticed in my professional life is interesting...

Not all, but many of the Grammar Patrol often don't know the correct use of a lot of words and will go on and on about how an author "messed up" never realizing that they need to do a basic dictionary check.

Also, while using the wrong "there" "their" or "they're" isn't great, making one mistake in over twelve hundred different cases doesn't really mean someone has no clue how to do it.

Instead of "oops caught a mistake" many of them become almost enraged and act as if their catching the error is anywhere near the same as doing the real work in the first place.

(It isn't)