Conversely, if you had 7,000 people cleaning an apartment occupied by a few million people across the globe, that might make some sense.

There's no doubt that Twitter could be leaner than it was as of September, but haphazardly firing employees at random and alienating the most employable of the remainder into resignation is not the way to go about it. He could have spent a few months getting to know the place, but deliberately chose not to.