I actually used Hypercard to write a BBS (of sorts) that worked via filesharing on our high school appletalk network. We had maybe 10 users at it's peak. Chat

I actually used Hypercard to write a BBS (of sorts) that worked via filesharing on our high school appletalk network. We had maybe 10 users at it's peak. Chatting and message boards that updated via polling a shared file. It was very amateurish but it worked