I wanted to build something very similar a while back. Spotify (or Instagram) for generative art. I guess https://www.dwitter.net is kind of like that as well. But specifically, I wanted to build some sort of revenue sharing for the artists, similar to Spotify's model.
Re: revenue sharing - we (my friend who I built this with, and I) were thinking along the same lines, it's actually fully implemented here. If user A uploads an algo, user B generates art with it, and user C buys that art, money will be distributed to user A and user B. Details are here: https://abound.art/artists
