I have a good reason.
Changing names just for fun, yup real good reason /sarcasmWhat are the names of the lower tiers?
Currently its only Donator(10 BTC) and VIP(50 BTC). Donators however , can't change their names.The same offence is happening to the customers who have already paid 2 BTC or more for one cup of coffee.
Invalid comparison, how is this in any way related to the forum?You need to match up with the current situation. I did not want to offend you but this is my suggestion. 
"You"(admins) don't "need" to , its theymos' decision and not a "democracy", he decides what goes. Donations, even though are appreciated, aren't that necessary, Ad revenues provide a regular stream of BTCs.