Considering how much time he spends at his resorts, it's amusing that you try to talk yourself into this guy working hard.
It's also funny that you question how smart he is WRT the tweets. He fires everyone, so it's highly unlikely that he would let a moron do his tweets, and pretend that they are his.
So we know he's dumb as a rock based on his tweets, and it correlates quite well with the lack of work.
Then again, you forgave him for giving away state secrets, since he's totally allowed to do it, even if it's 100% the wrong thing to do....