Killing or limiting edits i dont think is realy neccisary the jumbled erased edits I dont think is that much of a problem and what if someone decided to turn a shop out thread into a restoration what would that result in another thread? then the threads already push others down the screen pretty fast some days and who wants to goto the trouble of trying to find a thread thats been changed say 3-4 times and remember which one they realy wanted to find?

It seems to me changing edit options realy just makes the site less user friendly If its not realy broken dont fix it.