I agree that he sounds insecure and like a prick, but he's ALWAYS liked to throw around numbers.

When It's My Life was a hit, he did an interview with my local radio station and he was talking about how many countries the band had played and he made the statement that every album they had released since SWW had sold at least 10 million copies. Sure, that's a cool fact to hear, but it he came across pretty arrogant even back then.