just reading gnutella triggered a really old memory of times when Ares, Limewire and eMule where places to try your luck getting mp3s and software
BearShare, too, which also included pictures and video. I don't remember ever getting a virus from it, but I also kept extensions visible.
Docuwiki (not to be confused with DokuWiki) is still the most thorough source I've seen for niche documentaries.
https://docuwiki.net/index.php?title=Category:Name
It is all ed2k links. Unfortunately modern clients for ed2k are quite lacking
Back in the day as a teenager. Downloaded mp3 that was labelled with title and artist and .mp3 extension. It wasn't. What it was caused me to wipe my hard drive and reinstall everything. Fkuc that shit. Apart from that, many good stuff was had.