On The Unix Heritage Society's mailing list, colloquially just "TUHS", there are often interesting and fun stories and anecdotes.
Recently this little tidbit:
Me, after a pentesting company had given $EMPLOYER their shpiel: "And do you use social engineering?"
"No, we never do that."
"Because it always works, so we don't learn anything."
The mailing list has a bunch of the people who made and worked with Unix while it was "growing up" participating, which is nice; it also feels like a place that could easily stop functioning if too many people "found it" and flooded it.
I hope it will continue :-)