While the addition of anonymity would certainly be appreciated by would-be burglars you seem to be leaving out a small detail. It is trivially easy for a burgla

While the addition of anonymity would certainly be appreciated by would-be burglars you seem to be leaving out a small detail. It is trivially easy for a burglar to determine if someone is home. They can just walk up to the front door, knock and see if anyone answers. If someone is there ask for a glass of water, ask if they have accepted Jesus, ask if Steve lives there or whatever other BS excuse they have ready before simply moving on to another prospect. If no one comes to the door then the home is very likely empty and they can proceed. This has the added benefit for the burglar that anyone seeing them enter the property will assume they have good reason to be there. After all they marched straight up to the front door and rang the doorbell which is what non-thieves do so its less suspicious if they then go around the side of the house when no one answers.