Why anyone would want a public record? I think you mean why would anyone want to share their purchase history? If the record existed it would obviously be a go

Why anyone would want a public record? I think you mean why would anyone want to share their purchase history? If the record existed it would obviously be a gold mine, many people, [foreign] governments and faceless corporations would be all over it, they would be uncovering all kinds of things we couldn't have imagined and most likely didn't want to share and/or have terrible implications.