I've been listening to him for the past 4 years and I don't think he has any more insight into what is going on than anyone else who is paying attention to the Gold markets.
He was mega bullish on the explorer juniors before the collapse in '08 and then after he changed his tune to only prefer producing juniors. Well now that there's a credit crunch of course you want to stick with the producers for safety.
But the junior explorers are now grossly undervalued and every day that the gold price stays at these levels the majors are printing money and are incredibly profitable. More profits = higher market cap = more currency (from share price) to buy out juniors. Once the buyout wave starts Puplava will change his tune again. But then that's too late when everyone else realizes whats going on. The time to buy the junior explorers/developers is right now when they are unloved.