Here's the problem: there is nothing immoral about taking nude selfies and sharing them with selected individuals. The statement, "If you don't want pictures of your tits online, don't let anyone take pictures of your tits", implies that these actions are both immoral and stupid. Not just that, adhering to that philosophy will set sexual culture and identity straight back to the good ol' moral 1950's. This statement also relegating porn stars to being second-class humans by implicating that only "dirty" or "immoral" or "low/no-class" people agree to be recorded nude.
Now, the statement that privacy is an illusion is correct. And, there is something to be said for being cautious about what platform said data resides on. But let me ask you this: do you really want a society where everyone has to conform to one narrow "safe" standard in order to be respected and safe? And where anyone who doesn't confirm is automatically labeled as being "stupid" or "bad"? Because that is the philosophical implication of the statement and attitude you're proposing. Or, do you want a society where people are free to do what they want, and where consequences are expected and delivered--not just for the person who takes a nude selfie, but for the hacker who decides to take that data and do illegal things with it?
Yeah, maybe putting nude selfies on a cloud platform as a hot young starlet wasn't a technologically savvy thing to do--but those women don't deserve blame or condemnation. Rather, we should be hunting those revenge porn bastards down and subjecting them to the full force of the law, because now those of us with girlfriends (or boyfriends) who like to send us sexy pictures will have to do without because said significant other is now worried about those photos getting hacked. And I can easily do without seeing Jennifer Lawrence naked if that's the price I have to pay for ensuring sexting continues.