This basically is me suggesting that we add a character creation option for NPCs, mainly characters that fall far outside of the normal definition of "within reason" for their power level; things like Gods and Great Devil Kings and the like. The NPC could be site bound or player bound, meaning that anyone could play the character as long as they have enough experience with roleplaying on this site, or only the creator can play them. NPCs would be used more as plot-devices than characters, and it should be noted in the plan that an NPC would be getting used, as well as a general idea as to what it would (or could) be used for. Site bound NPCs would need to have more description put into their personalities, how they usually act, and what kind of combat tactics they use and so-on to allow players other than the creator to use them properly; while player-bound NPCs would be written and submitted more like a regular character, just with a bit of extra detail and information on the fact that they would be an NPC type character.
(this post may receive edits should they be needed)