I respect that #Fosstodon is sending out a notice to its users about the tough decision they had to make about whether or not to de-federate with #Threads. They offered a quick how-to for folks who have never personally blocked a whole instance before, which I'm choosing to go ahead with myself.
The big instance owners really have a tough job. They have a big responsibility to keep a safe environment for their users. But they also risk being over-protective of many. Respect.