> If I want to broker my house through MRED exclusively, and also advertise on Zillow, how is that a problem?
"If I want to sell my shit on Amazon, and also want it to show up on eBay seareches, how is that a problem?"
It's a problem because Zillow doesn't want to give their business to their competitor. YOU, the seller, do not factor into it. Get fucked. This is why I said you're conflating "private." It's not about you. Nobody gives a shit about you, capitalist at the door should've told you. *shrug*
> Neither Amazon nor eBay list products sold by the other site, at all.
Correct. You get it but somehow you don't get it.
> A better analogy would be a Google Products listing that points to Amazon products.
Incorrect. For that to make sense, Google would also need to be directly involved in selling products in the same way Amazon does. Google has practically no products that are sold to the general public on the open market, much less shit like furniture and toiletries. Google's main business model is being a tool to find things, and they sell their user's eyeballs (and browsing data) to other businesses. Google's and Amazon's business model are synergistic. Zillow's and MRED/Compass' business models are competitive.
Maybe you don't understand what Zillow is or does? Do you think it's just Google for houses? It's not; it's closer to eBay for houses. Might help you to understand Zillow's business model before wondering why it's not in their interest to include MRED/Compass' *private listings* in their results.
=Smidge=