There is only ONE major problem about this idea. If we donate to a server, and for example my username is Cam_2002, then the admins will set the username "Cam_2002" as a donor. Then you change your username, and it is not in the config file of the server. Also, the inverted of that. Someone may be a donor, then change their username, and then someone takes their old username, and bam. They are a donor without paying. So this should not be a feature. I can see how it would help, but I do not recommend it.
Honestly, if it is going to cost money, I don't think a griefer is so inclined to griefing the same servers that he will pay money to be unbanned. Besides, alot of people have come up with ideas that can solve this problem anyway. Mojang can do the same aswell.
I remember when I first purchased Minecraft, I thought we could create a character with a name after we logged in, kind of like a RPG. Needless to say, I discovered that wasn't the case and bought a second copy :P.
Yea, hopefully the spammers stop spamming soon about their username
I think maybe you should pay a small price for this feature. Like 2 dollars or something.
Really dude? Pay money? Well, I bought Minecraft with a card. I can't use a credit card, and 99% of the people wouldn't! That would make me think Mojang was a money sucking company that cares nothing about peoples thoughts. You already have to buy there skins!Also, if you changed your name you could be Notch, or Honeydew, or BlueXephos! Lame idea....