I know it's not terribly constructive to the thread, but upon reading the article and visiting the author's site, my immediate thoughts were, "Ugh, rich people."
I can't relate to them at all; shopping binges before the experiment, a cleaning lady, going out to eat frequently, etc.
In addition, I found the information on his site very limited. For example, when people would ask very pointed questions about how he does certain very mundane tasks with no impact, he sort of avoids the answer. In order to contribute to a no-impact society, wouldn't it be better for him to contribute his techniques?
Again, ugh, rich people!