Or perhaps like Gmail: stores the message but doesn't send until a few minutes later, at which point it's no longer editable. This would be easier to implement.
Discussion forums have had edits forever; reddit famously lets you go and delete all your existing posts at anytime by replacing them with "edited by autodeleter9000".
I kinda wish they let people add some text instead of allowing editing, like:
Wouldnt it be nice?
Added: * wouldn’t
Maybe if you're a famous celebrity etc. but it's scraped mine 5 times since 2007 (and the "expand conversation" links don't work) and I promise you that it has been fairly active ever since I signed up.
Links and uploaded media should not be editable.
It took a while for them to add this. And amusingly, comments (including those opening issues and PRs) are a bit more like a wiki than personal comments—if you have the appropriate permissions, you can edit comments by others. For a long time you could do so with no visible record that it was done. Which is objectively terrible but was hilarious if you worked on a team with a good sense of humor and reasonable restraint.
https://help.twitter.com/en/using-twitter/twitter-blue-featu...