Showing off your diaper or your binky is one thing. Deliberately making life miserable (OK, it's not "suffering" on the same level as a roman flogging, but...) for others around you is just over the line.
If I, as a fellow DL, saw you showing off your diaper, I'd probably chuckle. If I had to stand behind you in line after you deliberately shit your pants, whether diapered or not, I'd be annoyed.
I used to work at a convenience store many years ago where the manager was morbidly obese - to the tune of 400 pounds at 5'3". His obesity wasn't annoying - it was his complete lack of personal hygiene. The man did not bathe, and as an added bonus, I don't think he was capable of wiping himself properly - so he ALWAYS stank of shit and dirty armpits when he came to work. When he bent over, you could see the streak halfway up his back. As a cashier, I was frequently subjected to being within two feet of him, where the smell was downright nauseating. What could I do? Well, the only thing available TO do - quit the job.
That is an example of what I would consider your deliberate imposition of your poor hygiene on others. It's not the same as watching two men kiss. It's just f***ing disgusting, and folks with lesser stomachs than mine probably would have lost their lunch being around it.