So the while ordering items on the deep web is typically sketchy as advertised correctly in these viedos. What tends to be falsified is the actuality of the items, and the places to find them. You typically wont get what you ask for and mystery boxes are usually just a way for scammers to make money(about 99% of what is on the dark web anyway) people advertise their servies and goods in exchange for bitcoin, but theres no way of holding these people reliable for not returning their initial offer. In this way the system is (again the mejority of the time not always) abused by scammers.