You could probably direct link it in markdown to embed it, although i'm not sure if Twitter will serve it on a high-traffic gist like this one after a while (I imagine there's some sort of rate limit-based hotlink protection).
You said this much more constructively that I might - I really dislike when people post long form stuff on X/Twitter. For those who may not know you can reply to a tweet with “@threadreaderapp unroll” to have a reconstructed doc sent to you. The bot will reply directly to you and only you after the unrolling is complete. Hope that helps someone.
I know this one has been fixed, but I also find those an annoyance - more so because if you're not logged in on twitter, you only see the first tweet, not the thread. So rather than get irritated when I click through stories, I block the links on HN with ublock-origin rules like so:
2 rules each because the replies and the story titles don't share a common parent element. eg right now I can tell from the numbers beside the stories that number 23 is missing; but otherwise HN looks the same. The same trick works for google search results; I have rules like the ones below to block less useful tutorial sites when I'm looking for python/js docs:
Hope this helps folk too; I'm not going to fight a battle over links to these sites (and others I've blocked), I'm just trying to improve my own experience of the site.