No, it's not true. It's just a money making scheme. Hopefully, no one kills themselves, their children, or their pets out of fear of Armageddon. Camping is making a lot of money from donations to "spread the word." He'll probably claim that these warnings caused enough people to change their evil ways and cause God to be touched by our righteousness and decide to call off Judgment Day. He'll tell his followers that their donations weren't in vain. They are heroes that helped save billions of people.