It could be argued that acquiring a whole security-focused company is a signal they’re seriously reconsidering their approach to security and deserve a benefit of the doubt.
They also lied about having end-to-end encryption. The awful security practices could be chalked up to incompetence but the fact that they lied has taken it too far, in my opinion. I too have deleted by Keybase account because of this.
Why do I owe a commercial enterprise anything? They demonstrated repeatedly they cannot be trusted. In obvious and extreme fashion.
The fact that Keybase agreed to this tells me a lot more about Keybase than it does about Zoom.