Some people just ain’t getting your sense of humor.
On an episode of their TV show, they got people to line up in droves to sign a petition banning the substance - which is essential for life on this planet.
It's meant to be in good humor to teach people not to be so gullible. But so many people got angry over that show that if you Google dihydrogen monoxide today, you can still see many who have not let it go.