so if users have their own access to a feature like that, depending on the options, this could be good ?!

'cos i have one done... with some good features and some others to create soon:

1- users with permissions can access the Self Delete feature in their userCP
2- depending on choice of the admin, users are:
--a: killed/completely deleted (exact same function as when admin kill a user)
--b: sent to a usergroup of the admin choice (8 = banned)
3- can be forced to enter a reason (sent to the admin)

...i asked the question to see the possibilities of features, i even had someone asking for pruning users each time they delete themselves... it makes a board with a lot of empty posts... possible, but stupid!

other features ?!
.... i may not release the hack here, usually when someone release such hacks, the thread is filled with debates about the features instead of support... so i may simply give a link to it in my sig...