Any info on Rob Hanna? Quantifiable Edges?

What do you want to know? His blog has been around since around when I first started tracking markets, 2006. I appreciate his sharing his work and his efforts; but I have not bought any of his products.

As for the studies he shares, I think there is probably some, but a limited, value in them. The primary value is I suspect (1) checking false beliefs, (2) getting ideas for systems. However, I doubt they offer a great deal of value for the leveraged trader because he doesn't test using reasonable risk controls; and the biases are not strong enough, in most cases. I question, also, the predictive value in many of the studies he shares because he does not use out-of-sample testing and because, again, of the lack of risk controls. But, he will often mention such observations himself. However, I do like how looks for edges and the effects of looking at bias each day out.
Based on the work he has shared, I would imagine his systems have value or might be used for starting off points. However, I suspect the value is more traders using lower leverage. Some of his systems show compounding returns which I think should not be used. If you look at a system or hear a vendor talking about compounding returns then it is often, but perhaps not always, a red herring.

So, overall yes I enjoy the blog occasionally, and I am sure he has discovered some edges. However, it is not my approach (many of the questions he seeks to test are not interesting to me), and again haven't tried his products so cannot speak to that. But, yes I think there is value is some value to his work; perhaps a good jumping off place for someone new to testing or systems.