Way back in the 90's I used to run a one line bulletin board system running TriBBS under dos. We had a special Adult Section there for users to email each other, being a single line system and running a 9600 baud modem (Fast back then), chat wasn't installed. And we still had users from all over the world. They'd log in, download a mail package, search files, play games and if I was on the second node which required a second computer, they'd say hi.
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