I was arguing about PNI actually, not about how good DGKB was. Let me repeat. I have NO PROBLEM believing that DGKB was good enough to defeat ROCH Greats in say 100 stances or less (as opposed to Ken Cheng who thinks of him at most being _slightly_ better, which I assume means only beating em after 1000 stances or so). Anyway, that still makes DGKB quite a bit behind SM, who _proved_ that he needed only ONE move.
Back to PNI. I read the sentence about him being 'ext pleased' to encounter Ren as meaning that practically no one was above Ren's level during DGKB's time. So there were no DFBBs, no SPTs, no MRBs, no JMZs, no WCYs and Z3Fs etc etc.