I would recommend finding more information on the subject before passing judgement on it.
For instance, having rope tied about your breasts is not very likely to make them sag or disfigured in any way. Well, unless the rope is tied to the ceiling and the woman is hung by her breasts for an extended amount of time.
In fact, pregnancy has a more damaging effect on breasts than nearly any BDSM practice ever could. So, are you planning to have children? You might want to think about how it will affect your breasts first if you're that worried about them. Having your breasts increase four cup sizes in about six months tends to have negative effects on the connective tissues in the breasts.
Oh, and to clarify my stance on those "I have to have perfect breasts" and "silicone" people, I'll just say this: Fake tits make me ill. I've only seen about three models/actors with fake tits that I can stomach looking at them. And if a person is going to buy a pair of tits, then they could at least be realistic when choosing a size. A five foot, six inch woman that weighs 100 pounds that buys herself a DD size rack is just disgusting, in my opinion. That type of person, to me, looks like a twig with balloons taped to it.
Would I do this with my own girlfriend (well, wife, actually)? You betcha! In a heartbeat and twice on Saturdays if I could. Why? Because I know nothing I'm going to do to her breasts is going to seriously affect them. And trust me, hers are large, too; larger now that she's had a baby. That still doesn't mean I'm going to "damage" her in any way by tying a length of rope around her breasts.
As for your picture question, if it has a copyright logo on it ©, then don't upload it. Period.