We can do nothing and let this particular subverse die.

This. I don't agree with what's there, but from an outside perspective, I'm curious to see what happens when a community like that, on a site that takes a hands-off approach, will continue (or cease) to evolve.

Will it turn upon itself like the Uroboros and consume itself until nothing is left, or will it burn up and reignite from the ashes like the Phoenix?

I say we let nature take its course.