navindra Frank apparently allowed infinite edits in the past and it eventually resulted in havoc, so we'll see. 😃
I'm on a forum for a different hobby for 20 years now, and you can edit your posts for as long as you want. A few years ago there was one person who was editing on purpose so it looked like your reply was very weird or unkind, but that was the only incident in 20 years.
When you edit your post over there it says underneath your post: last edited: date and time. So, people can see it when post was edited after someone replied.