This x10. If I were to anthropomorphise HN it would be a middle aged white collar worker, pretty smart, making fairly keen observations about the evolution of a company's product and social structure, but in the dark about executive-level play. Financially conservative, thinks of money as a necessary evil. Stashes money in the bank and is highly suspicious of financial risk.
To this character Bitcoin is a threat because it mixes that which they care strongly about (open source, distributed systems, impact) with that which they've largely ignored and of which they are suspicious (money).
Edit: grammar.