I ran a few bulletin boards and definitely remember a few high dollar diner's club bills after discovering all my favorite high school PLATO games were availabl

I ran a few bulletin boards and definitely remember a few high dollar diner's club bills after discovering all my favorite high school PLATO games were available on a service of some kind. Later at college somehow a MUD ended up on one of the Decstation 3100s in the CS lab. That was the glory days of everything having an internet-exposed routable IP before the Morris worm proved what a bad idea that was.