A player submits an application. The character comes from a series where everyone has complicated and over the top powers and their character is one of the very best and strongest. Think something like Fate Gilgamesh. Their app looks fine and nothing is wrong with it. Their personality is clear and they have submitted sufficient nerfs. However, you know the player is a power gamer. They always try to beat the game with their character, say things like their character can solve every event. They ask a lot of questions about how their character is really special and powerful so can they get special treatment in the game. If you turn them down, they'll complain about how the mods never let players do anything.

They wrote a good app but you know they're going to be a pain in the ass to deal with if you accept them. What do you do?