I mean it has good use cases they're not just the ones that scheme promoters want to be true. I know TFA pokes some holes in the censorship resistance attribute of bitcoin but i think everyone can agree it does provide value transfer solution that is much harder to block than Visa/Stripe/etc. 1). Silk Road or dark net markets in general. Can't be done with Visa or other existing solutions at any kind of scale 2). Fun…
So blockchain only makes sense when:
a) You have bad actors
b) You need decentralization
The use cases for that are, for the most part, "subvert government authority". There are some cool other things you can do, like web of trust stuff, but the vast majority of the market is in the "subvert government authority" in one way or another, or is an outright scam.