Got to say as a sidenote, you've got a spookily similar writing style to me.
>Bitcoin is not a currency (why?), and is intrinsically useless.
It's worth noting (and adding to your point here) the paper is flawed if it argues Bitcoin is 'useless'. People conflate the lack of trust in bitcoin (IE is it government backdoored) with it being useless (IE can it serve a purpose?).
BitCoin is useful, it's basically a method of exchange. Is it secure? Not really. But Cryptocurrencies are gaining adoption, and Sweden has officially adopted the E-Krona, which makes it by definition that cryptocurrency an 'actual' currency (as it's now state backed).
Maybe Bitcoin itself isn't, but the basis of bitcoin is found in E-Krona and others, and if they're based on it, then bitcoin itself can technically be a currency and useful, even if I don't trust it and say to use Monero instead.