Tell me about public blockchain apps that do not involve objective money or objective identity, which require strict global consensus, why they should be built on public blockchains, and why haven't they been built yet? I'll consider writing a post, when I get back to it, to explain why it does or doesn't make sense

I think IP applications could benefit from public blockchains while not being entirely about just money or identity - more about permisionless (or semi-permissionless) collaboration / remixing