He does not know who he is talking to , which shows he has contacted many people. I once got a note slipped under my door from a neighbor saying to call him, he had money. I called the number and he answered with: “Is this Carrie? No? Suzy? Cindy?” When he went through the list of female neighbors I realized he had put a note under several different door and wanted to see who would take the bait. It would be like texting whatever numbers you have and seeing who texts back. Like the guy in the above text