Tor has come a long way in terms of usability, and all these freaks are constantly worried about someone infringing their free speech rights as well as the fact that there’s definitely a non-zero number of right-wing/white supremacist forums on the darknet. So to me it’s actually unsurprising that they would be posting them to darknet sites, just like it’s unsurprising the number of them that have cryptocoin wallets. Especially in law enforcement, where they gather a lot of their evidence from electronic sources these days, so they have to be a little bit more aware of how easily accessed it is than the average chud.