I'm not sure that simply not discussing such issues or not posting pics is going to help matters. Then some people are just going to say "look, they must be doing something bad because they're hiding their actions!". People who aren't doing anything wrong don't need to hide anything. Of course, discretion is needed. . .some people don't want to look at that kind of stuff. But hiding it just sort of rubs me the wrong way. I think open discussion is best, along with discussion of how you do it humanely and correctly. If it's not humane, well, maybe you shouldn't be doing it :p.
Now, idiots are gonna idiot. Pit bull owners have been fighting that one for years. No matter what the good owners do or say, the bad ones are going to keep making it worse for everyone. But the good owners should roundly condemn those bad owners, not ignore or condone their actions because of some twisted sense of solidarity.