I'm convinced this is all about him doing a favor for all the corrupt rulers and fellow oligarchs, silencing one of the last few platforms where people with millions/billions can't shut down a story they don't like. Twitter, for all its faults, is the one place where people with little financial resources have a shot at getting restitution or justice as long as their tweet gets some attention and signal-boosted.
In the space of 30 minutes a clip of video of something unjust happening to someone who would otherwise not even get a mention in the local paper, can become a national news story and wildly exceed the local power structure's ability to suppress the story.
Corporations, dictators, oligarchs, and powerful politicians really, really don't like that.