OK, thanks. I understand current usage trumps historical usage, and it always has been mainly about being understood.

I am the very model of a modern English professor
I'm down with how real people talk and these are things I'm noted for:
Teaching how to get your point across is what I sure can do
And participles go where it sounds comfortable for them to...

I've made it through so far focusing on whether something makes sense or not, then I can think about where it's correct. The whole point of language is communication, and when someone bitches about subject-verb agreement, or anything else all the time, it hinders communication a lot more than a technical mistake. All that to say I agree.