We’re just having a good time. We’re allowed to make jokes. It’s fine.
The whole reason we’re joking about it is because YOU CAN’T ACTUALLY SELL YOUR SOUL.
E.A. Koetting himself debunked this:
No, it’s not talked about because it’s not a thing. It’s fear-mongering caused by religious dogma which was exacerbated by Hollywood.
W H A T ? !
NO! That is completely absurd! If you have to give blood as an offering to a demon, it has to be the magician’s. And even then, it’s not very much blood. Demons can be hardcore, yeah, but that doesn’t mean they want you to kill your family.
Besides, it’s not much of a sacrifice if you’re using other people.