Various repeats, connected.
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This was covered here
It’s called post-humanism, or pre-humanism redux.
What Salmon is referring to is the boy at Starbucks with a coffee bean tattooed on his forearm, a member of the "Barista tribe." 
As I wrote on his page:

It’s the public proclamation of loyalty to a subculture; documenting the need to belong; atomization and the rise of pathologically over-determined imagined communities etc.
 etc. etc. It’s the sociality of baroque individualism.

We now have food geeks as well as science geeks, all with the moral philosophy of Asperger’s patients: so fixated on their mania for [tube amps/Pouilly-Fuissé/Ducati two-stroke engines] that you’d be a fool not to hire them for your [high-end audio store/restaurant/Soho motorcycle salon]. Why be a well rounded adult when you can be an eternal [pre]adolescent and expert, and a happy cog and servant?

etc. etc. and again.