Sexting isn't "starving of attention". It's just a little sexual act, or to make others day a little bit more pleasureful, or for the any other reason adults too it. Teens, especially towards the adulthood, aren't as stupid as adult seem to think. People just usually draw that picture based on non-complete images, and things that stand out (the bad things).
We used to send nude pictures of ourselves with my gf when we were teen, and it was both for the little thrill, sexual pleasure but also for feeling love towards the other person. When we later broke up it never did cross my mind to spread them to internet. Things change, and while it hurts, you don't have to be an ass about it.
It's sometimes funny when you read about parents writings on the internet, especially slashdot, how it feels like they've completely forgotten how it was to be a teenager. Of course, you didn't have smartphones, but you had the equivalent stuff anyway.
And of course, I don't live in the US where showing a nipple on TV is a huge thing (but killing people and other violence is just fine), so maybe I'm more liberal because of that too, but you just have to accept that sexting is usual and is what teens do. Even if you didn't get to do that as a teen.