Sorry Canonised, borrowing your threat to express a point.
Yes, yes, and yes. a XMM or any model/talent/candid subjects are the focal of a portrait. Without them, there will not be any portraits. So, why aren't them fair game in comments, criticism, praises and what not.
The original comments regarding "auntie" in the thread started a firestorm. If the image is of a young male, and the comments was "uncle", I doubt there will be much counter comments and definitely not the storm we had witnessed.
Btw, I won't comment on the beggar looking malnourished, because that is what I expected. If the ballerina looks fat, I will say the ballerina looks fat. How else to comment?
Back to the "auntie" comment. I don't agree with it, in terms of the description, but I don't see how it was derogatory to the model? Perhaps ... I better not ....