Seems like your opponent can't spot the good strategies on the board, and doesn't know what's best for the deck.
Game 1: Throne Room with only three other actions? Gaining Silver with Ironworks? Grab a Wishing Well, but then get more differently named cards? Getting treasure when it's clear that Throne Room + Poor House just dominates? Dunno what he thought would happen.
Game 2: The key strategy here is less obvious, but yeah, Herald/Wishing Well/Mystic is so good here. That Taxman buy I really don't like; it's not going to hurt you because you don't care about treasures (money and gains come from your actions), and it promotes a Big Money strategy for him, but he doesn't have Courtyard. Honestly, if he had opened Taxman + Courtyard, maybe he'd have a shot? Instead, he gets two Heralds, more to deny them to you than anything else, 'cause they're never going to trigger his other actions, and again he gets Wishing Well with nine other differently named cards...Yeah, I don't know what he expected his deck to do.
I guess the moral here is moar treasure doesn't always mean moar better...or something like that...