If you voted "step down as CEO" in Elon Musk's phony poll, you did something wrong.
His motivation to buy #birdsite was not to run it, but to implement his version of #freespeech. Passing the mantle now means:
* Return to being a user
* Have someone else to pull the potatoes out of the fire
* Transfer #legal responsibility to that someone
* Stop the main drive for #twittermigration
* Recover biz cred
* Being the owner, still keep #twitter as a personal mouthpiece!
In short: he gets it all.