User blog comment:MisterWoodhouse/Social Activity, the 2010 Editor, and Unpausing Migrations/@comment-37371166-20200922174318/@comment-44236894-20200923164651

People can check to see if the post is edited and can check to see the old version in Forums. I see no reason why it can't be carried over to Discussions. All this does is encourage potential spam in Discussions imo, because being unable to edit a comment after 24 hours can make it seem like an excuse for people to spam conversations. And again, I will refer to my previous points about this creating extra hurdles that have no reason to exist in the first place.

And I think you're misunderstanding the reason why people edit their posts in the first place, despite me very clearly listing reasons why people edit their post after a 24 hour mark in all of my previous posts.