Earlier quoted context omitted.
> Free speech platforms usually end up being extremist platforms. ...when the popular platforms stop being free speech platforms. Reddit, in its earlier days, was never dominated by the Voat contingent. They were there, but they were far less extreme there than they were on Voat. And then whenever they would post rank inaccuracies, there were clearer-minded people to point out why they were wrong, in the same place w…
Then the question is whether it's better to allow people with unsavory views a minority platform on mainstream sites where they'll try to convert others, or force them to their own niche echo chambers that will inevitably be extremely toxic. It's basically a tradeoff between visibility to the public and density of toxic content.
Letting every sub have it’s own moderators with nearly free-reign is a big part of the problem.