If I had to have respect for every person that had success in its life, then yeah maybe I would respect him, but that isn't the case. Kaz has done so much against his community that there is no point anymore to consider him.
Literally could write a wikipedia about it, but just a few things:
-Everyone was pissed off with the standards in GT5 and the discrepancy between different tracks and their quality.
-Sound has never improved throughout the years although other sims have all a standard since long time which only PD does not follow.
-GT5's career was lacking a lot, especially due to the poorest AI ever seen in an GT (GT6's career was much worse...)
-Of course non sense decisions (
GT5 photo locations to trash,
menu locations couldn't be used,
GT6's premiums to trash in GT sport,
not able to access interiors without glitching in GT5, and any possibility further removed in GT6,
higher resolution than GT5 but downgrades in night racing with massive reduced headlights, and massive reduction in rain on window animation,
GT6's rally made much, much worse than in any GT ever,
removal of random car racing in GT6's online,
multi class racing (like GT3 and dtm or lemans with 20 years of difference, GT Sport EMPHASIZES multi class racing with VGT's, GT3, and more, racing together))
-Delays (Ability to change time and weather only after Spec2 in GT5,
GT6: Senna content,
Sierra,
B Spec,
Course maker)
-Bugs (Clutch never fixed,
extreme unstable updates for GT6,
Extreme buggy servers since the beginning,
Most buggy and unfair penalty system,
...)
And much more of course. Kaz has done all of these and yet people take him seriously. After optimism stands delusion.