Twitter 'threads' are bad and people should feel badly for creating/posting them.
I couldn’t care much less about VC or crypto-bro brain farts like the linked post, although historians writing about this period probably will be, if only to write cautionary tales. But there’s a lot of deeply interesting expertise that’s been crammed into this godawful format, especially during fraught times like the pandemic and the current Ukraine invasion. I can only guess that the experts in question assume that Twitter will be the format with the widest reach, although I have to doubt that will always be true. If the Internet Archive comes up with a project specifically targeted at archiving Twitter threads as coherent artifacts, I for one would be happy to earmark a donation for that.
The worst part of the twitter as a long form platform is when a single idea extends beyond the limitations of a single tweet.
Long form is a much better format for comprehensive ideas, but the "this is something I want to comment on" isn't there and the engagement on the comment and comments on the comments rarely exists in those formats.
Medium's "highlight" and "respond" functionality is a rather poor implementation of that desired ability (the discoverability beyond the "top highlight" is difficult for other users) ... and then there's that whole "upgrade to read more" problem.
And beyond that, there's the bit that twitter has a large number of users - trying to traverse Wordpress pings and comment moderation... ugh.
Unfortunately, twitter is the best place that offers users, aggregation, no $ needed, comment on sentence, and the opportunity for engagement of followers.