Reiterating an argument that most HNers have heard, and already either agree or disagree with, does not advance the discussion. It would be more constructive to present a novel argument, or novel evidence for a usual argument.
The truth isn't dulled by repetition. It's up to crypto enthusiasts to come up with a use case.
Yeah, like buying things.
Bitcoin is basically useless for buying legal things. And especially useless for high dollar transactions without escrow agreements, since the value can fluctuate rapidly before transactions settle and can be liquidated to fiat (funny how moving it to fiat always seems to matter to people selling physical items.).