Tidelift, Patreon, Github Sponsors, KoFi et. al. lay down a patchwork of "it's like a professional services contract / it's like a fan club / it's like a SaaS subscription / it's like busking" metaphors that don't quite hang together, partially because everyone individually defines what their specific expectations can be, one at a time, and there's just … not a lot of discussion of harmonizing these