I was thinking the same thing Kim. After Pat's post I spent the day ruminating on the issue.
Would you interupt someone in person and say, "it's I saw, not I seen".
(Well, nevermind...there are those a**holes who/that/whom? do do that...lol)
And as far as people thinking someone is replying to them, it's merely a case of reading the whole thread and you hit reply to add your comment, and you are chosing the last post....not that its to them. It's a reply to the thread. Sheesh.