It would be nice as I fat finger things all the time. But then history gets rewritten. Which is why I think JR does not allow it.
Yes,I've heard that argument made.However,the sites with which *I'm* familiar note that a post has been edited and when it was done.So if someone here accidentally posts that another Freeper is a dirty stinker he/she can catch the error and fix it to read "you're *not* a dirty stinker.And if the offended person replies angrily he/she can then realize the original post was an error.