Ask HN: Why no crypto token tied to content sharing in true P2P fashion?

Why are we still stuck with torrents as the best thing to share P2P content with?

Why hasn't there been a crypto that rewards you for sharing content on a network?

Imagine: You buy 30TB of hard drive, you have a 1 gigabit connection. What not give that storage to the swarm and you P2P to whatever is needed by the swarm and earn a crypto in exchange?

Is anyone building this? Why not? Is it an impossible problem to solve?