Diablo III's new "Paragon" system was brought in to give "maxxed out" players some more stuff to do. It's been working for most, I guess, but for Alkaizer the well has once again run dry, because his Barbarian character has managed to hit the game's new ceiling.
As you'd expect, it took a lot of furious clicking. For reference, to get to regular ol' level 60, you need 23 million XP. To get to a level 100 of the Paragon system, you need over 3 billion XP.
If that's not making you feel inadequate enough, check out his armory page. And look at his weapons.