Earlier quoted context omitted.
The shooters in Poway, Christchurch and El Paso didn't post their screeds via Tor, and weren't radicalized on onion sites. They went to 8chan, because that was more easily understood, widely accessed, and had a larger community. It's the community that matters here, not the technology. The issue isn't whether or not it's possible for two nutjobs to converse in some way, obviously they can. It's whether or not there i…
Those communities will just be driven underground, more than likely, to Tor sites and be much harder to track. At least once 4Chan and 8Chan are pushed out.
So what? Those communities existed underground for decades and have only recently been pushed back into the mainstream. Being underground means it has less visibility to the mainstream and is thus less likely to influence people.