X taking away Twitter handles

X, formerly called Twitter, has taken away many handles to the dismay of its long-time users. Some of the handles that are knows to have been taken away are below:

@x

@twittermusic

@twittersports

@twittermovies

@twittertv

@music

@sports

@tv

@movies

Sarah Bregel writes in details on Fast Company here. Mashable writes about it here.