Maybe you could start with addressing the original concerns in the OP, which could be primarily done by:
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.
Thanks for the information, I was not aware of this. I'm happy that at least one good thing came out of this thread.
I sent a picture of me typing out the literal post I sent minutes after. If that is not good enough proof, then I will send a "timestamped" image once I am back from college.
I am satisfied with the trezor and mac, however, I would want to see more evidence of possession of the Dell XPS.
I am also concerned about trying to sell a gambling script that is fairly clearly not giving anything of value to a gambler.
Lastly, I am interested if you have evidence of possession of the coins you claim to have as collateral
here.