Oh yeah, TNT does that at times, needs to change the username of an account but let's the person keep all their stuff
I once saw a newbie account with an UC Grey Wocky because of it
They can also re-create UCs, I vaguely remember someone accidently using a potion on theirs or something and them fixing it for them. They're capable of doing quite a bit, they're just lazy and choose not to most of the time. I'm always glad whenever they do choose to, gives me a little hope, hah.