It's customary to assume the most positive interpretation of the author's comment; otherwise things tend to degenerate into a flame war.

Its a fair point. I should have specifically said that the manufacturers are particularly competitive, some more than others, and that competitive quality leads to cheating. That all the big sellers of solar panels in the market are Chinese is not relevant to the point and so I should have left it off.

No, GP is right, I would feel attacked by this if I were Chinese. Hanlon‘s razor though.