With teens, I could understand. Lets face it, growing up is a challenge, especially when your parents have expectations of you. I've been there and I had to hide my diapers too.
Sometimes, I see a thread by people who are older and asking about how to hide their products. Or mentioning in a post about hiding, etc.
While I could understand the necessity of hiding TB and AB related products like pacifiers and other such items. But I wonder if hiding diapers is more a part of the fantasy of getting caught then it is about a real need to hide them.