My point is: Bitcoin is a well-tested shared ledger, with plenty of eyeballs trying to exploit and secure it.
Does it make technical sense to run Bitcoin for a private ledger? No, it does not, you're absolutely right.
But does it make business sense to waste a few CPU cycles mining, compared to wasting probably hundreds of thousands of dollars developing custom software for this purpose, which will still be less tested and probably more insecure? I'd say it does.
My point is: Bitcoin is a well-tested shared ledger, with plenty of eyeballs trying to exploit and secure it.
Does it make technical sense to run Bitcoin for a private ledger? No, it does not, you're absolutely right.
But does it make business sense to waste a few CPU cycles mining, compared to wasting probably hundreds of thousands of dollars developing custom software for this purpose, which will still be less tested and probably more insecure? I'd say it does.