Yeah, I figured this would be used to possibly provide some Just In Time help. Can't say I'm surprised people read that as "people posting questions detected to be closed will be shot in the face and fed to the SE Inc pet Unicorn"
Taking "thanks" out of a conversation between exactly two people is very different. It's very personal and can easily be seen as rude.
But SO isn't that; don't treat it like that. SO questions may well be read by thousands of people. The "thanks" is useless to 99% of them. It's like signatures. Sure it seems neat when you do it once. But when literally thousands of people have to read it on thousands of posts...please stop!