I really don't understand all the hate and cynicism in this thread.
Imagine a situation where a well-known poster is father of a new born child and talks about some of his experiences and posts a few pics ... I doubt anyone would answer "Shut up, billions of people had babies before you" or "just think of when the kid's old enough to raise a quarrel".
I also don't believe that he's trying to boast, he's simply expressing his happiness and IMO it's sad that most people try to tear it to pieces just to feel superior.