I had it turned off today as a test but I just enabled it (registrations were disabled over the past week or so). I guess I'll see tomorrow if it makes a difference
I'm really hoping for some quality archaeology/anthropology/history content as well, I started !humans@terefere.eu for a kind of catch-all community (and yes, that's the best name I could come up with)
It seems that the query that Lodion shared has the wrong single quote character, ‘ rather than '. Try using it with the latter, I had the same issue as you and this was what fixed it.
I had it turned off today as a test but I just enabled it (registrations were disabled over the past week or so). I guess I'll see tomorrow if it makes a difference