Again - no one would even care if you simply stopped being so senselessly cocky. It is obviously just a game, and because of that your bravado is just even more ridiculous. All that is being said is that "At one point, you were really terrible" - if you improve, it doesn't matter; it is really that simple, so relax.
@ Guebo
Why do you continue to challenge someone who hasn't logged onto the game for a few months now? Do you feel that your current achievements are muddied by the fact they they were accomplished by others (warden among them) who understood what to do before the nerf. You were not good enough to defeat the delve bosses before they updated it, until you can beat newer difficult content without the nerf you will be considered a lesser quality player. And if you could laugh at yourself, this whole...thing, wouldn't have become your legacy on the server.