In post 4, shaman_ argued that conspiracy theorists want to bring up people like Barnett and Asteneh and their qualifications but ignore the conclusions they reached.

In point of fact, I have never ignored the conclusions they have reached. Astaneh-Asl's conclusions were tentative, however:
http://web.archive.org/web/20060905082531/http://www.ce.berkeley.edu/~astaneh/1-Publications/Astaneh-9ASEC-WTC+Paper+2003.pdf
What's more:
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Astaneh resigned from the investigation team put together by the Federal Emergency Management Agency and the American Society of Civil Engineers because he didn't agree with the group's decision to keep findings secret until the initial inquiry was complete. Without FEMA's backing, the National Science Foundation team was shut out.
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http://www.firehouse.com/terrorist/911/6_APbuilding.html

In the following video, Jonathan Barnett also made it clear that his team was very surprised that WTC 7 collapsed, and also made it clear that the investigation of tower 7 was not business as usual:
https://www.youtube.com/watch?v=HgCoV7phKa8