dz is delaying their bad reviews

So not gonna lie, I was kinda curious about something. A few months ago I posted a bad review of DZ (which was deserved) and noticed that review, and a multitude of others were deleted within a few days. Just to test this out, last week I posted three bad reviews on the DZ page as well as one good review. They were at 618 reviews. Now they are at 612 and the three bad ones I posted are gone. This is straight up lying and I think it is false representation. Just wanted to let y'all know the skeezy things DZ is doing. Which btw, my sorority isn't doing and all our bad reviews are still there. Because we're not fake.