Regarding liquid democracy specifically I think it inherit the problems of issue oriented politics: "don’t miss the forest for the trees", democracies are looking for short term clientelistic policies because the short term pays better to politicians.
Right. No part of me believes we'd have this functional a society today if the founders of America had resembled the values, motivations, and access to technology of the crypto/tech community.
Here's a prototype of it: https://peeryview.org. Check out the /about page. It's like Reddit or HN, but instead if having a single "moderator" with monopoly power over a set of "voters" with one vote each; you weight everyone's vote for your unique feed. And they weight a second layer of people's votes, etc.
We call this network a Web-of-Opinions, or a WoO. The Woo is subjective. It's soft. It's social. It determines your attention (in the news feed).
As it grows, it creates a new game-resistant reputation system, aka a "Liquid Democracy", that can be used for many things: like a Proof of Personhood, or an actual Democracy.
We just announced a protocol draft last week at https://braid.org/meeting-99. If you're interested, please give feedback here, in the braid group, or write me directly at toomim@gmail. This is the time!