Yes I Know this isn't the greatest wish item but I think it would be interesting to say the least.
Wipe the slate clean of all gameIDs to start with. Them have all players assigned a random ID, such as Player1 and so on. Other players can them submit suggestions for each player and when enough similar entries are recorded, that player1 gets his new gameID chosen by his peers.
I have no military training or ever associated with real military pilots, but don't they sort of get assigned a handle as opposed to picking one them selves?
I know this has absolutely 0 chance of ever happening but it would be interesting to see what handles some people get.