I'm a member of EO (entrepreneurs' organization) to which he referred in the article. He's referring to the "gestalt protocol". You can read more about it here: http://www.chiefoptimizer.com/357/entrepreneur/gestalt-proto...
Another value is, when speaking in a group (we call it 'forum'), experiences benefit everyone who listens whereas advice is only applicable to the intended listener.
An illustrative example is "I did X and Y was the outcome" vs. "You should X".
Sometimes we find it limiting however, and ask that people not use the gestalt protocol. That's the exception to the rule.