>I absolutely cannot understand why any engineer would chose to stay at Twitter with the way things are.

I get it. For the same reason that Geohot gets it.

There's a certain type of personality that doesn't care about life. They don't care about family. They don't care about wealth and material possessions. They don't care about "work life balance". They care about clout. They care about being "the best of the best". They want to be part of an elite team working on the hardest problems in the world, and nothing else matters. And Elon (through SpaceX, Tesla, and now Twitter) feeds that need greater than anything else available.