[sp332]

It's an interesting tech demo for a very niche use case: when you need both a decentralized database and a way to avoid editing history (e.g. "double-spending"). All of the uses you mentioned only need one or the other. If you need to keep track of transactions like a ledger, it's trivial to use a normal, centralized database with a published transaction log for trust-free audits. That gets you protection against double-spending without any of the inefficiency of blockchain tech. For the other side, you can have something like bittorrent or IPFS (which is not blockchain tech, BTW) where there is no central gatekeeper, but rewriting history doesn't matter. There's just darn little in that intersection of the Venn diagram.

[aryxns]

care to elaborate more on what you see does exist at that intersection?