What's up with all the private listings on Baton Market?

One of the sites I commonly check for brokered deals is Baton: redacted They have deals I don't see listed elsewhere and their data room (and overall deal presentation) seems to be pretty slick.

However, I've recently ran into some issues with their "private" listings (supposedly off-market deal where the owner is accepting offers on a case-by-case basis). At least in CA, there are way more private listings than public ones (~80/100). I've tried to message the seller on a couple of them with no luck. The site used to be mostly public listings with a few private listings sprinkled in, but seemingly overnight there were an enormous amount of private deals added. I'm skeptical (paranoid me questions if they are they even real listings) and have gone so far as to remove private listings from my searches on Baton.

Has anyone here had success with private listings?