As the article mentions a lot of the accounts probably just using VPN services. Remember when Elon exposed the US government in cahoots with Meta and Twitter actively shadow banning people for free speech on legitimate topics such as covid, covid vaccines, masks, and the woke agenda?

The "Twitter Files" absolutely did not expose anything like that, despite what Lord Genius Elon tried to imply. At best it exposed internal discussion and policies that may have suppressed posts related to Covid, but showed that the Biden administration was largely (largely doesn't mean never) uninvolved with that. It seems like the most they asked was in regards to the "Hunter Biden Laptop" issue and that was largely with posts that were showing the nudes of the women that he was sleeping with, not even posts that were just nude Hunter.

Elon then turned on Matt Taibbi and banned him from Twitter when he wouldn't go along with his lying and spin.

You mean when he teamed up with hack journalist Matt Taibi to try and make a mountain out of a molehill?