Does not, in fact, reveal why they're removing usernames. "It's time to keep up with the times" isn't a reason. You are admonished that your real name is very g

Does not, in fact, reveal why they're removing usernames. "It's time to keep up with the times" isn't a reason. You are admonished that your real name is very good; shame on you, your parents spent effort on it! Which isn't a reason either. Don't hide behind "another" (i.e. the last and only) layer of mystique! Not a reason either. They are all peripheral arguments and appeals to emotion, which might help sell it to you but none of them explain it. That means the real reason is something that will fuck you over in some way.