One weird thing I've become increasingly skeptical of is promoting/advocating for classes of things rather than specific examples. For example, "blockchains", "sharing economy", and even increasingly on the fence about "public goods".

I think so! About 90% of the way to convincing myself. Biggest open question is whether my sample size is big enough or there's an entire class of examples I'm missing 😛

I think that in general, specificity is crucial when discussing anything of importance. ie why debates start with really nailing down the definitions, to understand first and foremost what the heck we're even talking about.