Or you are simply weeding out the top class of freelancers before they even contact you because they have enough options that dealing with a potentially aggravating client isn't worth a response.
I do agree that, of those who remain, filtering out those who fixate on negative aspects of the relationship is a good idea. Those people will often look for negative things, even if none are there, making them painful to work with.
That's also deliberate by me as well. If they have enough options and they're busy enough then we shouldn't be working together because they have a fair amount on their plate.
It's not a perfect filter. You are indeed correct. I would be wary about a client that demonstrates certain traits as well.
I do agree that, of those who remain, filtering out those who fixate on negative aspects of the relationship is a good idea. Those people will often look for negative things, even if none are there, making them painful to work with.