I get that the mods do not want people to abuse the edit system just to rack up the edit counts, but stack overflow is primarily about code. Therefore we must be exact.
I recently came across a post with a missing parenthesis, other than that it was spot on. This may only take someone a few seconds/minutes to find if they copy paste, but why make it hard to correct this.
Maybe a better idea would be to allow edits that are within code tags to be less than 6 char.