Thanks for commenting. I love this geek talk and you are right about Hive not being very privacy focus. BCH and now BTC have got into some sort of social network with Nostr and some apps like Memo.cash and read.cash and bchnostr.cash.
I know Ethereum has its own SoFi movement, not sure about their status. But besides social network, wonder how many protocols have been drafted but they have becomed abandoned. I remember Namecoin for Domains and even a Blockchain based DNS protocol with okTurtles.