I have been hosting for nearly a year now, have had almost always good experiences, but twice now, it has happened that the person who arrived on our doorstep was not the same person as the one who booked, I didn´t even have his name or where he came from and what he was doing, I had to ask him for this information. The last person a few days ago turned out to be a DJ, who was working in a club in the city, and was not home until 3am. Now that may be fine in a hotel, but this is our home and I really want to know who is staying here. On both occasions it has been fine, no problems, but this is obviously a loophole in Airbnb´s booking system. Should I specify this in my listing? It should be obvious, but although it´s against Airbnb regulations for a 3. party to book on behalf of someone else, it seems to be easy to do.