I don't understand why people have a fit every time this happens. Having your diapers peeking out from the top of your pants and people seeing them doesn't make you a pervert, or a flasher. It doesn't make you a "creep" or a "typical male". Honestly, people walk around with their underwear peeking out from their jeans all the time, some "gangsta" people even have their jeans like halfway down their legs with everyone seeing their boxers, (and that's apparently even fashionable).
Letting your underwear show from your jeans is really fairly common, and there is nothing that makes it suddenly more wrong if the underwear is a diaper. People will think "oh, that guy is incontinent", not "all people with diapers are pervert fetishists, let's grab our torches and pitchforks and hunt down people we've never heard of on the internet to make them feel bad".