Pedler -
Yes, I understand about the high signal to noise ratio at the DIS sometimes. I don't do the "dance" threads, and yes, it can get a bit tiresome when people jump to conclusions about things such as the dining plan.
In a way, we are a vicitm (the entire Disney community) of the "internet effect" - overload of information based on assumptions that makes things bigger than they are. I mean, the Disney Internet community spends way more time disecting every tidbit than it takes Disney to make the tidbit. For instance, think of all the virtual ink that was used across all the Disney sites regarding the changes to the menu at the Garden Grill - when it's possible the change occured when some suit ate there and scribbled down a memo saying "try some more upscale style food, my wife thought the catfish was gross".
Where I think this relates to this topic is, once you peel away all the assumptions and over-analyzing (which I am probably more guilty of than your average DISer), Disney isn't really THAT complicated. A perfect example is the Dining Plan, in the example you mentioned. There are huge threads about it when it's pretty simple : appetizer, entree, dessert, drink. Expect what the program promises, and if you get extras offered, it's a nice surprise. Instead we have "well, on 9/05 California Grill let me add a skewer of shirmp..." and ten pages of people talking about it.

So yes, I do understand that frustration. I'm lucky to have a certain amount of structured time each week where I have to be in front of a computer for a certain length of time with no agenda, so I don't mind filtering so much. But, in the end, most of it is pretty straight forward. We make it more complicated just for the fact we spend so much time discussing it.
I haven't posted on the TGM topic for awhile (though there have been many threads lately about him, it seems), but did here because it seemed there was a question of sharing information. You are correct - it does just irk me that there is supposedly this information that is so secret you shouldn't share it with other Disney fans. The example I gave above regarding the connecting stores on Main Street sticks out in my mind because TGM stops the "tip" to specify, "remember, you read our little agreement!" for something that is pretty rudimentary in my eyes. Not something everyone is going to know right away, but not a "secret" either.
One of the benefits of TGM, as you mentioned, was the centralization of threads, again re: the dining plan. I understand that it's easier for some people to have one "word" from someone - especially if time is of the essence. But I guess that's the key to what bothers me when this discussion comes up - most people who talk about TGM with the usual effulgence are a bit overzealous, as even TGM himself admits. The distinction I rarely see made is that many people are talking about access to the message board, and not the "automated vacation planner" (which is really just a collection of article) or the content of the articles. So, in essence, it feels to me like people are paying for a message board. When this distinction is not made, people join up (as have posted here before) and expect the articles to contain information that they may not have to offer. The articles aren't updated terribly often in some cases, but the message board is - a key distinction.
You know what would make me less inclined to dislike TGM? If he just released the articles to the internet (made the whole thing open, heck use some ads if he must - many Disney sites do) and then charge a fee for access to his message board (and therefore to him personally). So the "Main Streety shops are connected..." is there free, and he charges for the up-to-date information (perhaps even keeping new pages for 30 days or some such delay, like the AllEars newsletter). I just don't feel like what is advertised is what is sold...there is nothing really automated, and when you say "automated vacation planner" many people expect something that is going to spit out personalized itineraries. I know I did - and I am a pretty informed consumer. As you may have sensed

I rarely fork over any cash for virtual resources.
Anyway, that's just my opinion. Your mileage may vary. Perhaps I should change my tag line, LOL.
N.E.D.