My obnoxious reason behind this goes like this: when I stayed at the permaculture convergence, there were several "little sayings" tacked up here and there. And in the shared restroom there was "nobody is perfect", and some giant jerk added a piece of paper underneath with the additional message.
It reminds me of an episode of "The Tick" where there's this group of people called "The Heys" and they want to destroy the universe because once the universe is destroyed, there will be nothing. And nothing lasts forever.