User blog comment:Da God Of SpongeBob Fans/New Username!/@comment-5994340-20160727223239/@comment-24412656-20160727231945

First of all, you can only change your username once. Even if he wanted to, he wouldn't be able to change it back.

Second of all, it's his account. If he wants to change his username, he can do that. It's not your decision to make.