I don't quite get the intent behind rather here. I too would like to hear from people who tried this, but its not a preference to being told the FDA is clamping down, its just another perspective.
Nicotine addicts like taking nicotine irrespective of the 101 toxic chemicals in smoke they get along side it. I'd rather the Surgeon General didn't say "oh well, let them do what they want"
I also have views around paid blood and organ donation in general. I think its a bad idea.
Why do you think that someone who would literally suck your blood out of your veins so that they can live forever would bother to tell you what it feels like?
Why are we pretending this is anything but horrifying? We have multiple works of dystopia and horror fiction about this very premise: The Golden Compass, The Waterworks, Get Out, The Supernaturalist, Unwind...