Glad to hear someone still remembers RIPscrip graphics. I was a co-founder of TeleGrafix Communications, who made the RIPterm and RIPaint software for viewing and creating those graphics.
After googling, I just realized that Maximus 3.0 eventually included RIPscrip support built-in, but I had lost interest in my BBS and moved on to hacking on Unix systems by then.
But I remember RIPscrip being a nice format. Thanks for providing me with many an afternoon spent tinkering with it.