At least he practices what he preaches. You have to give him kudos for that.
He's exchanging one problem for another. So, he's not using toilet paper, but he's using more water (I hope!).
Like all hypocrites....he really doesn’t. The paper used in his previous two, and now third, books would have kept him in toilet paper for several lifetimes. If he really practiced what he preached, you’d never hear about him because he’d be living like the Amish in some backwater town in Ohio.