Ahaha, it wasn't "about" anything, really. Many years ago when I was in high school, I did a drawing of myself and two friends as magical girls, just for fun. But a lot of my dA friends really liked the concept too, so I made a contest (which now that I think about it, never actually had a conclusion?!) where people would submit designs for other magical girls that fit the theme of the original three. There was a set of guidelines for the outfits so they looked vaguely uniform, lists to keep track of who had claimed what jewel-themed name, specific color, and weapon, and stuff like that. People got really into it and started doing fics and fanart of each other's Scouts. We even had a few organized art exchanges.
DragonsLover1 was especially prolific and kinda took over organizing, eventually deciding that it would be neat to collect all the stuff that had come out of the project and stick it in a club. So this group is kind of more of a scrapbook than anything else...