Here some info that is relevant to this subject from the above mentioned thread which David Allen had deleted.
Very interesting...INTRUDING INTO THE WORKPLACE...indeed. GTD seems to be the newest incarnation and cash-cow of MSIA backed business seminars. David Allen worked for the MSIA front-group, Insight Seminars, which was covertly backed by MSIA, and used for recruitment and as a money-machine.
___________________________

There is information about MSIA from the world-renowned researcher Dr. Margaret Singer about half-way down the page...

Intruding into the Workplace
An excerpt from the book Cults In Our Midst by Dr. Margaret Singer

Development of a New Age Training Program: A Case Example

One personal development program quite popular with educated professionals was [="Red"]Insight Seminars.[/] Some defectors from the organization have charged that I[="red"]nsight was used to recruit members to the background organization, the Movement of Spiritual Inner Awareness (MSIA). [/]The founder of Insight and head of MSIA is John Roger Hinkins (although he rarely uses his last name), and his story is an interesting one....
...Then he studied Eckankar, a New Age spiritual system, and declared himself the "holder" of the Mystical Traveler Consciousness fighting the Red Monk (the devil). He is said to have considered himself in line with Jesus, Moses, Noah, and the like. Blending the old and the new, J-R created MSIA and gained quite a following. By the early 1970s, he was teaching seminars four nights a week.
Later in the same decade, some of his devotees convinced him to adapt Lifespring training to MSIA's needs. (Lifespring has been one of the more popular LGATs since the early to mid 1970s, along with est and Actualizations. ) Working with a person who had been key in the development of Lifespring, J[="red"]-R inaugurated his Insight training seminar with 120 MSIA ministers, who spread it first to MSIA's own church cells then to public seminars. [/] J-R is reported to have called Insight both his "ministry" and his "money machine."
At some point, a "Gift of Giving" session was added to the five-day Insight seminar. During this session, it has been reported, some people were so euphoric they made out checks for $10,000 to the group. Numerous Insight graduates were said to have been recruited to MSIA, although the link between Insight and MSIA was not generally known to seminar attendees.

In 1983, allegations of sexual abuse surfaced from two top aides. Some staffers said J-R used his spiritual authority to seduce them. According to reports, J-R discouraged marriage and ordered his personal staff to abstain from sex; but former devotees said that they were forced to engage in sex with J-R to maintain a "smooth relationship with the Traveler." Hinkins denied these allegations and no legal or law enforcement actions resulted. Because of these charges and other negative publicity, however, many devotees and Insight trainees became disillusioned and quit. Some described the period afterward as a "spiritual shattering," and in some cases, it took years for these former followers to patch up their psyches. Meanwhile, some staffers have remained loyal, continuing the Insight seminars.

(cont'd halfway down the page)
http://www.caic.org.au/psyther/lgat/singer.htm

[="red"]David Allen worked for Insight Seminars,[/] and has been with MSIA for 34 years, and MSIA has existed for 37 years since 1968.

http://www.davidco.com/blogs/david/archives/education/ "I sort of grew up in the training world in the experiential personal-growth milieu (was a facilitator for [="red"]Insight Seminars[/] for several years)".