It's been 2 weeks since he officially bought it, but working at twitter (and even as an outsider just reading the news), you see the writing on the wall. There were tons of reports of planned layoffs, and the changes that Elon wanted to see in the company. None of what he is doing is surprising, least of all to Twitter employees.
Companies have always known that employees will put up with abysmal conditions to some level. The stress, effort, insecurity, and fear of finding a new job has always had an extreme value to most people.
