[DbPhoenix]

I suspect that a large part of it has to do with making something which is essentially discretionary into something that's mechanical so that even the dumbest trader can use it, as long as he has the money to buy the software.

There's nothing especially demanding about gauging the balance between buying and selling to determine the path of least resistance (which is what volume spread analysis is supposed to be about). Nor is auction market theory particularly esoteric. In fact, the basics of it can be written on a 3x5 card.

But people don't want something they have to think much about. They want signals (Where do I enter?). Therefore, those who want to understand should not expect fascinating exchanges with those who are searching for instructions.