But you see, when most of us see the 'not OK to edit' stamp, we won't bother asking if it is OK to crop. You're on your own.
The thing that I really don't understand about the 'not OK to edit' stamp is this: What have you got to lose by letting folks make a graphic suggestion? In extreme cases, someone could edit your photo in jest, and you might not appreciate it. Like putting your head on someone else's body. But the rest of the time, they might do something like: "That photo looks great as-is Judobreaker, but have you thought about boosting the contrast a little, like this...?"
It is not something you thought you wanted to see, but you may reverse that decision if you open your mind a bit. I know I did.
I challenge you (and others) to change your tag and open yourself up a bit for the next round of pix you submit for CC. You might be surprised at how much you learn.
Lastly, remember that it takes a bit of time to save a copy of your pic, edit it, then re-host it. So only the people who are really trying to help are going to actually go to the trouble of editing your pix.