I suspect a lot of folks are going to read them and think, "There goes Dan bragging about how unbeatable he is again." Amiright?
If so, that's totally not the way to read the point Dan's trying to make. Instead of getting annoyed at the "tone" ask yourself--who is contradicting him?
Who's saying, "Nah, I was there, and it wasn't much"?
Again, I'm not trying to be a jerk here, I'm just trying to show the other side of this argument.
There are people out there who have seen Dan, and weren't blown away. Now do they want to go on public record saying something negative about someone for no real reason; that's another important question to ask.
Let's say Dan has a 90% seminar success rate. Thats a pretty good rate of people who like what he's doing to people who don't care for what he's doing. Out of those 10% who didn't like it, how many were just underwhelmed, but not upset, I would guess 5%. How many of the 5% who were upset, would actually make public note of it, maybe 1% or so, how many of that 1% use internet forums....
See what I'm saying here? People are more likely to talk positively about someone then negatively. So it's rare that someone is upset enough, or public enough to want to blast someone else that they've had a negative experience with, unless it's dramatic.