If you ask me, Twitter should be held accountable for this. I mean if it's really that easy to manipulate a blue-ticked account than its about time they think about their security. Once I saw a similar thing happening on Facebook, I reported that account and I haven't seen something like this again on facebook at least. I believe Facebook manually reviews a name change request of the account and you have to re-verify your Identity afterwards. It's about time these platforms should be held accountable too. They get away too often if you ask me. Yeah you can argue people are dumb, greedy whatever. But if you tell me that I can change a blue-tick account to impersonate a celebrity and get away with it than I think people should really think about what kind of pathetic platform they are on.