Suppose John owns a room. John's room is occupied at full capacity, 24/7. People mingle in the room, sometimes they trade with each other. Assume John is never present in the room at any time. John decides to install a camera and microphone in the room. John analyzes the data in order help increase the quantity of trades in the room, through which John makes a considerable commission. Later, someone asks him to delete the data he has on them. John says he will only delete the data after 90 days, and if the person takes a step in the room within 14 days, they will not have their data deleted.
Is John's behavior ethical?