Well if you spend months digging for something and find something, some people are too pig-headed to even look at it.
On that note, I think I solved your mystery of no responses.
http://www.vernon911truth.org/wtc7challenge.html
On the very same page issuing your challenge, a challenge that was sent to:
the majority of structural engineering professors and physics professors at: McGill University, University of Toronto, University of British Columbia, University of Alberta, Queens University, University of Waterloo, McMaster University, University of Calgary, University of Western Ontario, Simon Fraser University, Dalhousie University, University of Ottawa, University of Victoria, York University, Carleton University, University of Manitoba, Concordia University. It was sent to every engineering and architecture firm in the Okanagan, every physics and engineering instructor at Okanagan College and even all Vernon-area high school physics teachers. Not one person has responded with an explanation. Every known newspaper in Canada was contacted about this challenge. Not one newspaper has covered the story.
Further down, addressing the potential participants:
Why do you unquestioningly believe what authorities tell you to believe without figuring things out for yourself? Are you a courageous rational autonomous human being or just a frightened slab of livestock that authorities control and manipulate at their will?
You don’t understand why they won’t respond or take you seriously? You need to change your approach when communicating to the scientific community, or anyone with differing views, or you’re setting yourself up for much more wasted time, and empty mailboxes Michael. It’s like saying “Hey there, could you help me figure this out, you cowardly sheep, unscientific fraudsters?!! (the last two words pertaining to the article in your first post). But I’m sure that’s only part of why they don’t respond. If not, maybe they were all thinking “As usual all science-illiterates will be ignored.”
Absolutely no responses… Hum, I wonder why…