the.com/underground forums
the internet's back rooms, where reputation is currency and everyone assumes you're a cop.
means invite-only or obscure online communities built for trading information, goods, or services that the open web won't host.
from predates the web itself — bbs culture in the 80s ran on modems and paranoia, and when the internet went mainstream the same instinct just moved to tor and encrypted chat.
entry costoften requires vouching or proof of skill
trust systemescrow and reputation scores, like sketchy ebay
lifespanmost die or get seized within a few years
ironyheavily monitored by the very authorities they hide from