Minor/pedantic addendum: For all uses of “blockchain” in this thread, I assume we can all agree that we’re talking about “public ledger blockchain” specifically.

Private blockchains absolutely have their uses, such as being the technology that powers Git. But those uses are still strictly limited to situations where an append only ledger is actually useful, and those are very few indeed.

But yes, in regards to public ledger blockchain, there are absolutely no valid use cases.