Also, politically, I'm "an enlightened centrist" lol and nearly all of the political spectrum here is represented well IMO, and even personal attacks/strawman arguments are not immediately banned but first discouraged.
Thanks dang!
I don't think Twitter can have the same signal to noise ratio as a well moderated forum like HN, even if you follow the "right" people, because the format of the site incentivizes a different style of discussion.
I think you have to stop following famous people like those guys, and instead follow up-and-coming economists and other scientists and bleeding edge researchers/builders, who are working hard to make a name for themselves with novel research in some interesting area.
Those are more likely to keep their Twitter feed focused on their research, rather than off-topic tweets, rants, political advocacy and "influencer" stuff people do once they become famous.
Also, the community of people who engage with them tend to be similarly focused, so you can find more high S:N folks to follow in their discussions.
If you curate your Twitter feed to just those types, you get a very high S:N ratio there.
The New England Complex Systems Institute - https://necsi.edu/ (Twitter link at top right)
London Math Lab’s Ergodicity Economics group - https://ergodicityeconomics.com/ (Twitter feed in left column)
Any PI running a research project of interest to you at the Santa Fe Institute - https://www.santafe.edu/