I had an inkling of that very early on when he shared with Fuserleer that he was using a memory mapped data structure from Java, which I can't remember the details now but appeared to me be a suboptimal strategy for the use case.

I don't know if he is inexperienced or just trying to accomplish with the least effort. He hasn't shared with any of us what he did before Nxt.

He is obviously efficient. Estimate how much money they earned on Nxt. But you can't build anything really significant via schemes which are not expanding the pie for everyone in the ecosystem.