BBS, mIRC, dark web in general
and monero, ofc
I would also be tempted to include Craigslist 🤔
lmao, still a hit in brazil (for some)
Craigslits didn't really take off in the UK, but we had gumtree which was p much identical
here as well, I guess, not that I've ever used it. by then, Orkut reigned alone over these lands