This would be a great thing for griefers. Just sign out, change your name, sign back in. Simple.
That aside, I don't really think you should be able to change your username. You should have taken the time to think about what you wanted and/or make alternates should a name get taken. Those of us who took the time to really define ourselves will be forced to follow along and those guys we knew as Sinistar404 or PokeJack can easily disappear and we will never find them again. We would have to remember a new name just common enough to give most of us headaches.
Think I can always get Jetra? Well, I have several others that I have to use sometimes.
This is not a very practical idea.
If someone gets banned, they can just change their name. If you change it for fun, all the servers you were whitelisted in, you wouldn't be allowed in, until they whitelist your new name.
I like the idea of a unique ID number, that never changes. So you can change your name, but not change identity. This could also play a part in anti-grief protection, as their ID would be banned too.I think they should be more clear on minecraft.net when making an account, that it is going to be your screen name too.
Although I love my username as it is
This is great news! When I created my username, I wasn't sure of what minecraft was, and was just using my "throwaway" screen name for game accounts I'll never use. Realized soon that I love minecraft. Even if they charge a small fee to change it, I'd pay.
And I don't even know why we need this crap, it's all useless if all of these people weren't kids This wouldn't be a problem because all the kids here want the "COOL" Name so yeah It's pretty much a waste of jebs time except if he makes it cost like 5$ Or euros a name he'd probably make lots of money.
Jeb mentioned in his question and answer session that the name changes would be a one-time only thing. We run the same feature on a site I run, and it's worked out great. We allow one name change per year, if you want it.
That aside, I don't really think you should be able to change your username. You should have taken the time to think about what you wanted and/or make alternates should a name get taken.
Uh, I don't know about you, but I signed up for MC because my friend said, hey this is a fun game, you should try it! I didn't know my signup would be my in-game name. Hell, I didn't even know there was multiplayer at the time. And I certainly didn't think it was something I'd still be playing a year later.
I used my real name, and because of that I'm hesitant to play online with anyone except people I know IRL. The opportunity to change my name means I can actually join servers and meet new people without fear of being stalked or something. This is good thing - this game is played by more people than just 13 year old griefers.
And because some people seemed to have not heard it the first 8 times, you can ban the IP address. Changing your name is not a free pass to get back on a server if you ban them right.
For all you who are against the name changing: STOP COMPLAINING!
Jeb and Mollstam are a lot smarter than you and can think up ways to make it all work out.
And when you ban someone it bans the IP adress not the username.
Stop thinking you're smarter than jeb and the Mojang Team.