Robert Couchman thought he was doing something good when a Facebook ad caught his eye. The ad appeared to tell the story of a North Carolina woman selling some of her final handmade creations near the end of her career. He ordered two bee houses for about $80.But when the boxes arrived, something didn't add up."Right away, my antenna went up," Couchman said.Couchman studies native pollinators. He says what he received wasn't just disappointing, …