There are a bunch of great accounts to follow that are only really posting content to x.
Karpathy, nearcyan, kalomaze, all of the OpenAI researchers including the link this discussion is on, many anthropic researchers. It's such a meme that you see people discuss reading Twitter thread + paper because the thread gives useful additional context.
Hn still has great comment sections on maker style posts, on network stuff, but I no longer enjoy the discussions wrt AI here. It's too hyperbolic.
I think hn probably has a disproportionate number of haters while Twitter has a disproportionate number of blind believers / hype types.
But both have both.
Not sure how this compares to YouTube (although my guess is the thumbnails + titles are most egregious there for algorithm reasons)
Most of HN was very wrong about LLMs.
And like said, the researchers themselves are on X, even Gary Marcus is there. ;)
But in most other sites the statistic is 99%, so HN is still doing much better than average.
Almost every technical comment on HN is wrong (see for example essentially all the discussion of Rust async, in which people keep making up silly claims that Rust maintainers then attempt to patiently explain are wrong).
The idea that the "educated" takes are on X though... that's crazy talk.