1. You lock everyone out of the org for whichever valid but idiotic reason. 2. The instant you do, you send them all an email explaining the situation.

That’s how you do it in those cases. You don’t blindside them and then wait for them to react, restore their access back (which totally negated and nullified the “I wanted to preempt a takeover attempt” argument) and continue to skulk around instead of being open about it.

Seconding this.

Ruby Central is not a large organization by headcount, but in terms of impact, it is massive. Any person up to the task of leading an organization like this must know that drastic, public action involving long-term contributors will necessarily require an explanation. Inevitably. They must also know that in an information vacuum, people will assume the worst.

This is not difficult to foresee.

I truly hope this is settled without too much collateral damage, and I hope that the people in leadership learn a lesson about communication.

You're completely right. In a generous interpretation, having so little communication over such a long period is where this went wrong. In any case, having your highly-tenured team dissolve and feeling like things were "hostile," is an indicator that you'll need to do better. Then again, who knows what the goal actually was? Maybe this went perfectly to plan. Given there was nothing approaching an acknowledgement of regret or apology in the press release, maybe this went exactly to plan.