There's still danger here. While anyone can fork, it's painful and work-intensive. A well-funded actor could fork something useful, add a bunch of features the community wants, and do a shitty job of committing back. Once most of the community stops using the old stuff and the devs go back to their lives, we can lose control of useful stuff.

Stuff like when Signal enshittifies. It has enough inertia and spin up cost that the forks barely see any traffic.