https://www.vice.com/en_us/article/n7zygg/twitter-bans-elon-musk-flight-tracking-account-after-saying-he-wouldnt-for-free-speech

Twitter has suspended the account “@ElonJet,” which tracked and tweeted the movements of Elon Jet’s private jet. According to Jack Sweeney, a college student who runs various sites that track private jets using publicly available information, the account has been permanently suspended.

After Elon Musk took over Twitter this year, he pledged to defend the principles of free speech on the site—specifically, he said, by not banning the @ElonJet account.