[deathlight]

The problem for permissive alt-platforms is that if the mainstream platforms expand their definition of bannable undesirables (call them witches for short) then all the witches will go to whatever platforms are still available to them (the permissive ones). This article details nicely how it all plays out:

https://slatestarcodex.com/2017/05/01/neutral-vs-conservativ...

>The moral of the story is: if you’re against witch-hunts, and you promise to found your own little utopian community where witch-hunts will never happen, your new society will end up consisting of approximately three principled civil libertarians and seven zillion witches. It will be a terrible place to live even if witch-hunts are genuinely wrong.

>...

>The equilibrium is basically what we see now. The neutral gatekeeper institutions lean very liberal, though with a minority of conservative elites who are good at keeping their heads down and too mainstream/prestigious to settle for anything less. The ghettos contain a combination of seven zillion witches and a few decent conservatives who are increasingly uncomfortable but know there’s no place for them in the mainstream.