Twitter's Trust and Safety Council is a little bit SJW, but mostly it's there to keep celebrities from being bothered so much they stop tweeting. You can be as mean as you want to a nobody, but tweet something even a little bit derogatory to a celebrity and your account is history.
That explains the punishments. Every case I'm aware of involved a celebrity, though not always directly. There's been a lot of toxicity on Twitter recently but fewer scandals about celebrities (except Taylor Swift deleting her account).
