There are a lot of things that someone could tout as accomplishments that make them better than someone else. PvP skill in a video game isn't one of them. For all such things, but especially ridiculous ones like you are touting, the person is a douche and really insecure for needing to put themselves above others. Let your achievements speak for themselves and carry their own weight. Don't be a dick, a douche, an asshole, or a self aggrandizing idiot, but especially not about something completely meaningless and stupid.