According to media and users on Twitter:

Many Twitter users added a Mastodon profile link into their bios as the Twitter alternative picked up steam. Now, any links to blocked Mastodon servers are disabled and accompanied by the text “Warning: this link may be unsafe.

And

Twitter on Thursday evening suddenly suspended several high-profile journalists who cover the platform and Elon Musk, one of the richest people in the world, who acquired the company just a few months ago.

Hours after the suspensions took hold, Musk faced off with one of the journalists he suspended in a Twitter Space audio discussion before an audience of more than 30,000 listeners. The suspended journalist, along with several others, found a backdoor way onto the platform through the website's audio function.

“You doxx, you get suspended. End of story. That's it,” Musk said, explaining his latest policy to the group, before he left minutes after having joined the discussion.

Wow. What a shit show. After suspending targeted individual accounts, now it appears it is getting more systematic. Is there an employee at Twitter capable of saying no to Musk even if it means being fired? Or is Musk at the command and personally disabling those accounts? 

Twitter is turning into USSR with a fake free-speech proponent leader.