I also hoped to devote a bit more space to what I allude to in my first footnote, referencing John Searle's The Construction of Social Reality, pp. 90-93 and 117-119, about how institutions can quickly collapse when collective agreement about social facts is undermined, as seems to be happening at an accelerating pace within the Church of Scientology.
(All posts on Scientology at this blog--65 so far since 2005--can be found here. An overview of my involvement in Scientology's battles with the Internet is in my 2006 "Scientology Sampler" post, which was updated with a 2009 post, "Scientology v. the Internet history lesson.")
UPDATE (26 January 2012): Tony Ortega, editor-in-chief at the Village Voice and prolific investigative journalist on the subject of Scientology, says very nice things about my article and Michael Shermer's associated article in Skeptic at his "Runnin' Scared" blog, where there are lots of comments.
This issue of Skeptic should be available in all Barnes & Noble stores beginning around the first of February.