http://darkpad66z2t5f7ktywictzg5rcblsw2x4zsz3jg4lh3pgx2ervuvfyd.onion/details/dread
Available via Tor and i2p only, it is not subject to limitations on discussion imposed by traditional social media forums. Markets must go through a vetting process to obtain their own subdread, and this helps keep a lot of scams and riff-raff from filling their pages. Dread is still not perfect by any means and relies on careful guidance by admins and moderators, but one would be hard pressed to find a better place for discussion of all-things darknet...