I skimmed the thread but didn't find the argument. Can you point me to it or rephrase it?
He was talking about something kind of off-topic because everything listed in the original post has/is it's own native currency:
"The blockchain" is nonsense without a native currency. Even PoS requires the ability to issue native tokens in order to incentivize people to do it (and even then in current PoS systems, many don't even bother). Hash chains (which is what you are left with if you remove the native issuance) are nothing new and not particularly interesting.