There are few blockchain use cases (mostly revolving around finance or registries or anon).

EVERYTHING not anon is better centralized...
And the market for anon is tops 5% of the global economy (mostly grey markets).

But nobody cares about the specifics...
Just show me the next bubble... with a cool whitepaper... and excellent buzzwords.

The Bitcoin bull run is going to spawn a new orgy of ICO scams.