It's weird how so many Peak Oil experts are retired. Is it  that they weren't allowed to speak the truth while they were still active in academia or business? Or is it that they miss the  influence and respect they had while employed, and like old men before them, they exaggerate their stories in order to regain the attention they once received?
Give me a break.
And have you happened to notice that one of the industry's problems is that so much of its workforce is older and retired or near retirement? Expertise is being lost every day.
The guys still working in the energy industry usually are too busy making energy to sit around and talk about - I'm just in a lull.

And we still in the nuclear business are rather worried about how to handle the flood of orders while teaching our new hires how its done.

No, it's weird to think that wisdom comes from youth.
It's probably a good thing that the Peak Oil movement gets to use all this expertise. A lot of those 50 somethings would probably still be working if the domestic oil business hadn't contracted so much the last 15 years or so.

As far as the experts still working, as one poster noted, they are too busy working to get involved in this movement. And, if their CEO's, such as Lee Raymond of Exxon are telling them not to worry about it, they won't. It's a corporate culture that's hard to break.

I think this only covers a small fraction (like Jeremy Gilbert and Ken Deffeyes). Campbell was speaking out long before retiring, as are or were Tom Petrie, Matt Simmons, Hubbert himself, Al Bartlett, Tom Petrie, Henry Groppe, Charles Maxwell, Charles Hall, the Meadows...

I think one common pattern I see is that people who were grown up already during the 70s are way more likely to be sensitized to this issue.