That’s not what happened. It wasn’t any more or less toxic than any other place on the internet, the lead admin just got burnt out. He asked the community for volunteers to moderate the instance and apparently nobody showed up.
So he’s shutting down the instance next month. It wasn’t dysfunctional or toxic, he just sacrificed a lot and AFAIK never even broke even with server costs.
The key reason is that we just don’t have enough people on the admin team to keep the place running. Most of the admin team has stepped down, mostly due to burnout, and finding replacements hasn’t worked out.
Just checked. Still works.