Earlier quoted context omitted.
I find it hard to believe this was the kind of environment he was cultivating at OpenAI if 95% of the staff were ready to follow him out the door. I've worked for the type of people you mention and no one followed them when they leave. 95% threatening to leave in this case is hard to ignore.
I can believe the staff likes or even loves him, but the following him part was mostly because of money/shares and because they know he's influential and well connected to people with money. And peer pressure may have had a part in that letter signing. You don't want to be on the side of the losers if Altman gets his way.
How do you know?