Also some bands don't want to operate on "donations" and want to set a price for the download. I wonder how that would work to be able to set a price.
Of course you could avoid this by only getting the torrent from the official band's website, but fakes would certainly be a problem.
But it really isn't sufficient for the artist to just stick a wallet address somewhere in files seeded, and hope for the best.
The format needs to formalize support for it, my players need to verify and make that information conveniently accessible to me, preferably in a one-click-to-tip-artist using my configured crypto wallet kind of fashion.
For me this is one of the actual legitimate use cases of cryptocurrency. These microtransaction kind of business models where folks like artists are happy to receive tiny amounts like tips if they can get it repeatedly from all their fans globally, passively, just by having created their art and putting it out there where it's all effectively "long tail" revenue, stacking as they produce more work, ad infinitum.
Artists should be seeding high quality files to the torrents themselves, in formats that are signed and include a crypto wallet for sending "donations". Then the playback software just needs to check the signature to ensure you're giving money to the actual creator and not some imposter if you want to throw money their way, through a payment ui the players conveniently make available to you.
There's just no need for the middle-men who make it all miserable, and exploit control of the audience for their own gain via advertising/"recommendations"/propaganda etc. Torrents have fixed the distribution problem, and no consumers are really interested in depriving their favorite artists from making a living. It's just a glaring omission that the torrent system doesn't incorporate a reliable artists compensation circuit, like it's just unfinished.