In the event that I request critique, I fully accept the negative, and the positive, and use each to better my skill.
In the event I post a for sale ad, all I ask is that you say "yes I'll take said item" or "no I don't want said item."
That is all.
But my whole point is that if one publicly tosses an image in front of people, such as one might in an ad, one does not have the right to "ask" for any specific response. Just because on starts a "conversation", one does not have the power nor right to direct the conversation. One does have the power to accept, ignore or otherwise react to the comments in any manner one wishes. And if one is having a bad day, then ranting about it can help, I suppose.
At least with LF landscape, a bad day of photography can still be a good day of exercise.