At the weekend, Musk briefly banned all links to the rival service and suspended users who tweeted out their Mastodon usernames, but has now admitted the apparent move to prevent Twitter users migrating was an error. “That one was a mistake,” Musk said on a Twitter livestream with a former intern on Tuesday night, adding: “Fucking post Mastodon all goddamn day long, I don’t care. From an evolutionary standpoint, how’d that work out for the mastodons?”