As I see it, for one, Kornel already knows he's awesome, and doesn't need to blow his own horn. He's got other people to do that for him, now. o.O
Also, the monster at the bottom of Ao100 idea, if you're going to suggest it, what's the reward? Why would a player do this? Currently a player faces Ao100 for the badges, perhaps to play Character Level 20 for a bit, for the challenge, and maybe even for the fun. If you put a big badass "I'm gonna kill you" thing at the bottom, that's cool. Just give them a REASON to kill it.