One of the local BBSes in my area ran Skyline, but Skypix never took off.
With 2400bps modems, which were current at the time, it was really slow. Also, the terminal program was shareware, and everyone downloaded it and played with it a few times, decided it wasn't worth the cost to connect to only one BBS, and went back to using their regular terminal programs.
It was an interesting idea, but perhaps a little ahead of its time.