Probably because the people getting let go aren’t in high demand anywhere with current tech layoffs

Probably it takes more than a week to find a new job and people like to have the new job in hand before quiting the old one.

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.

Yeah, but it was unclear up to that point if he was actually going to buy it or not.

Layoffs started over the summer. Hiring freezes had been implemented.

I'm sure many twitter employees thought he would drag his feet or the deal would fall through, and they'd have at least a year+ of time before he comes in.