Same way he accepted BTC, and cancelled it because of the climate cost? He knows perfectly well that Doge is PoW as well so this is probably some PR stunt for crypto bros. Oh and same way he said that they wouldn't sell that bitcoin while selling bitcoin? And why are we even listening to this guy in the first place? This is just blatant market manipulation that he is already sued for. This is exponentially worse than John McAfee boot licking. He will turn against you once again you know? It's just a matter of time.
He also thought it would be possible to turn doge to pos, like he was a first one who invented forking. I wonder what happened with that. Alsp i wouldn't be surprised if he started to shill to some other token or coin when doge turns out to be not edgy enough for him.