The major problem with the wiki thread is that it is poorly referenced. While it is fine to reference JJ as to "what" DIR is, referencing him as to "why" DIR is gets a bit self-serving and circular; and does not meet wiki reference guidelines.
If you read the thread referenced above, you will see the problem with the Wiki guidelines. They pretty much prevented anyone who knows anything about it from participating. A representative from Wiki participated in the thread and saw that as a strength, since they would have to rely on sources rather than their own beliefs. The DIR article at that time as simply terrible--it was clearly written by people who knew little about it, and what little they knew they did not like. During the thread we looked at the Wiki PADI site as well, and it was even worse. Looking behind the scenes on the discussion pages showed that the people who were writing knew little about diving, let alone PADI.
What we saw in both articles were people who were seeking sources whose credibility they did not understand, and they tended to find articles written by people who were critical, which became the focus of the articles.