Can we just have a sticky on every foone post on HN to tell people to stop complaining about it being a Twitter thread? Maybe then Foone himself [wouldn't hate being featured on Hacker News so much][0]. Not to mention he has a perfectly good reason to use Twitter threads (which he explains over and over): he has ADHD and it's a way to cope with it.
I don't really see how typing into Twitter's UI is any different than typing into a Notepad file. Just type the thought and hit <enter>. Any editing beyond that might be appreciated but isn't required.
[0]: https://twitter.com/Foone/status/1372945388664066061?s=20