Adding four random digits to people's names was a brilliant solution to two common problems with usernames (users wanting the same username and usernames of notable personalities getting leaked), and now they're just going to the exact same system everyone else uses with all of its attendant problems? Fuck off
Just like all the constant unnecessary UI redesigns, it's a bunch of people constantly having to justify their own employment. And what happens when you run out of obviously good things to implement (that you're actually allowed to do)? Well, you gotta go back to the drawing board and figure out problems no one is actually having. Can be fantastic to make Number Go Up but that doesn't mean it's good.