But they chose a nonstandard moderation strategy that limited their ability to scale moderation with users. The default system is that communities are moderated independently of admins (not saying admins don't form communities or that there's no overlap between admins and mods) whereas on beehaw only the admins can create communities and therefore are the primary moderators.

Now I'm not saying that there's anything inherently wrong with the system they've chosen but the fact that it is nonstandard and in fact built into the core precept of beehaw means that this was easily foreseen.