It's almost as though he bought it to kill it. He is not a good manager of human beings. Who wants to get an email telling them that they have 24 hours to stay or go, and if they stay they're going to do their work plus the work of all the people who chose to go? Fuck that noise. Like you said, if they have experience and skills, they'll easily find something somewhere else.
Its revenue comes from advertising. The deep pockets advertisers are going to pull away from a platform where racist speech is rampant. They don't want to be associated with that crap.
I think it's more that he was seduced by the power of it all. Commanding one of the most ubiquitous social platforms makes one pretty darn powerful. He wants to play "god", except that "god" he's playing is a socially retarded attention whore troll with zero ability to manage people.

