As I said, these kinds of thank-you's are common. I just linked to the first one I found. You can conclude that either 1) people who read seddit are a bunch of idiots and don't learn anything from it or 2) it works for some of them. I'm inclined to believe #2.

A lof of PUA stuff is oversold, but there is plenty of good advice to be found as well. It definitely made a difference for me.