It is weird that someone would enter into a three year signature campaign. Who is to say that aTriz will have something to advertise sex months from now, let alone three years from now.

When physical items are being sold, it is customary around here to post a picture of said item with a piece of paper that has the date written on it, along with the username of the person selling the item. This will prove the seller at the very least has possession of said item.