So would you characterize that as "sunk cost fallacy" or "Stockholm syndrome"? Because Reddit has shown exactly how little it cares for its communities or the "landed gentry" who maintain them and if you were a mod who had been paying any attention at all to what's going on, you'd be foolish to want to continue to maintain a relationship with it.
Reddit isn't unique. There are (obviously) other places where communities can exist and grow, without relying on the largesse of libertarian tech-bros who see you as just a means to a cashed-out IPO end.