I wish this were the case and absolutely should be with the amount of garbage in the open exchange but its shocking how some of the biggest ATD's in the world are too lazy to execute a proper PMP strategy or are financially incentivized to bottom-feed in the open exchange chasing vanity metrics instead of buying inventory that serves to real people and drives real results.

Also, DSPs, get your shit together and don't let buyers layer on targeting that will reduce the bid rates to nothing. Forecast and let them know what they can or can't spend on a deal ID.

Buyers, set up line items by deal ID or by publisher! Please, I beg you! Any other way just wastes everybody's time and makes optimizing or troubleshooting pointless.

In a nutshell: they probably won't.

It depends, though. Some might find your deals useful and simply start buying. Others will not, most will not even accept the deal.

From my own experience: I don't accept the PMP deals that come to my DSP account, unless they are sent by a publisher I spoke with previously. I'm not interested in testing new PMPs from publishers I never heard about before. I want to utilize the PMPs that are created by the publishers I know and trust.