I don't want to point fingers in here, but there is a user that has all his reputation from removing "thanks" and "hi". Except for a single answer with one upvote. I know (I read the post on meta Stack Overflow) you don't like greetings, but that's not what I'm talking about.
He adds no other information as far as I've seen, in all edits simply removing greetings. This is not even reputation farming, it's worse, and, in my opinion, a repulsive behaviour that should not be taken so normally.
I do not blame him only, however; I blame those which approve such edits: why? Why on Earth would you do that so often? That is more close to censorship, and is certainly not added value.