I totally agree with you "the ultimate judge of claims", but my problem is, while the one side only
claims, I and a few others
explain why it is unlikely, we raise several questions and concerns and all we get in reply are wrong numbers of flying prototypes, offensive replies in the meaning of "as if we would like to belittle Pakistan" and still none of these concerns is even addressed.
It all reminds me to a similar harsh discussion a few years ago where similar guys claimed and even swore "we'll get J-20, J-16 even J-15 + the Liaoning and UK's Eurofighter "soon", they are in fact already in Pakistan secretly operating off a secret base" ... again endless stupid discussions, many concerns and explanations why it cannot be and always the same stupid "brother, I know it and you are only a foreigner!"
In the end if these claims will be true, it would mean: China develops the J-31 for Pakistan on its own cost, will deliver them to Pakistan long before it gets its own first J-35 which has an advance of two years in testing and - according to some here - most likely pays for them too on its own!
And now tell me how likely this is? ... exactly as likely as getting J-20, J-16 even J-15 + the Liaoning and UK's Eurofighter "soon"
The one who's making claims, the sky is green should explain and not the one who disagrees!