Why would my post and video be taken down?

Today a man rang my bell and flashed a gift card for video gaming. When I spoke to him through the doorbell, he asked for a woman who does not live here or anywhere in my neighborhood. I know all my neighbors. We also each have unique style homes so there would be no confusion. Why would this not be allowed or taken down multiple times. Then I posted asking the community WHY it would be taken down and that was taken down. All with no explanation or email. Can someone shed light on this?