i think it is permanant and you cannot change your username. although you can change your pa sward but cannot change your user name.

yes creating new currency is legal, and there is no banned on it,

as it is really a small amount to do any thing with that therefor you should only do shopping with this.

no i have no such facilities i cannot use bitcoin in my real life.

the best way to earn bitcoin is to buy it and then hold it for the price increase,

yes i can convert altcoin to bitcoin very easily using a exchanger.

to me the future of bitcoin is quite bright.