I bought the game and I put in my name, my last name kkwedell, which is fine for the forums and such, but it is very "lame" for smp. I cannot get a refund because it has been past 30 days. I wish to change my name to Earthboundyoyo because i LOVE that game. Minecraft is just as good . Just a suggestion highly doubt anything will be done about it....Thank You for listening to me ramble on.
dont some ban by the ip-address?
Nope, unless you specifically name the IP they only ban by account name (and no there isn't an easy way to see someone's IP)
If name changing were to be implemented, I think servers would keep track of bans by the original account name.
Mostly moved on. May check back a few times a year.