Twitter on Wednesday suspended an account that used publicly available flight data to track Elon Musk's private jet, despite a pledge by the social media platform's new owner to keep it up because of his free speech principles.

Then, hours later, Musk brought back the jet-tracking account after imposing new conditions on all of Twitter's users — no more sharing of anyone's current location.

But shortly afterward, the account was suspended again. That came after Musk tweeted that a "crazy stalker" attacked a car in Los Angeles carrying his young son.

He also threatened legal action against Jack...