I just now, after all this time, became curious about the blue stars under some people's avatars, and by hovering over the stars with my cursor, discovered what they mean - years of participation. So here's a thought for a minimalistic change that might fit what we're talking about here. Create a six month star. Make it pink. Thus in six months a person gets a pink star; then in a year the pink is replaced by blue; then in eighteen months a new pink one appears beside the blue; then in two years the pink is replaced by blue; and so on. I have no idea if this is hard to program into the software. But the idea is minimalistic, in that it represents merely an interation of something already in place, and it also treats everyone the same, instead of singling out the theists in some way.