A better comparison would be the phone company charging you a monthly fee to keep your phone number unlisted. Since you wish to be unlisted and your contact information cannot be sold, the phone company has figured out a way to make money from your information nontheless.
Bird dogs are not the same either, the idea is that they are facillitating an exclusive relationship between a seller and an investor. Bird Dogs are cultivating relationships and adding value.
On the other hand, Mr. Schmidt, is simply organizing and distributing information to whom ever will pay. There is no exclusivity, there is no added value. He is simply profiting from the mass resale of information that is already readily available.
If you were in default and about to lose your home, would you want Mr. Schmidt making money from the sale of your information?
Yes, we are making money from other peoples misery. In my case, I offer much in way of protection from default, waivers of deficiencies, and promissory notes. I offer them a place to relocate, help them with expenses, and have been known to lift a couch or two.
Perhaps I am old school or just too sentimental, but I believe more of us should be helping and less of us should be skimming.
My two cents!