Circa 1985, I ran a BBS for my computer club and when a Fidonet feature was offered in the software I activated it and figured out how to connect to a larger relay BBS in my area code. It was really magical in those toll-call days to see messages that had relayed across the entire country in just a couple days - entirely FOR FREE. It was like a dial-up modem Pony Express! This was especially amazing for us 8-bit micro hobbyists in the early and mid-80s who were scratching out an isolated existence in the wild wastelands of ad hoc user's groups and BBS' far beyond the gated walls of universities, government and big corp IT depts - we'd never even seen early Usenet!
I lived near Los Angeles at the time and still remember meeting some guys in New York City entirely via free FidoNet messages. A few months later, for other reasons, I happened to make my first ever trip to New York and actually met up with those Fidonet friends and hung out with them. Good times.