What do you guys think of appending a message something along the lines of "Post edited by: ___ on date, reason: ____"
The reason for that is i've noticed with some post lately, that it has been voted negatively because it wasn't a bargain. A while later, the message has been edited to be made into a 'bargain'. Would be good to have a message to say that it has been modified to avoid any confusion! :)