I think you mistook me there.
There are people who think "Oh, THAT'S what that stuff is!", and go and self medicate.
Take for instance, digoxin. This is a stabilized and standardized medication derived from digitalis. (foxglove.) It is effective for treating a variety of heart conditions.
Deciding "Oh, Hey! That's a valid therapy! I will stick it to the greedy pharmaceutical industry and self medicate!", and then proceeding to extract digitalis toxin to self medicate your heart condition is a great way to end up dead.
Likewise, production of silver nanoparticles because you learned they are good for killing toxic bacteria, and then ingesting large quantities is
how you end up like this guy. Likewise with escharotics. Yes. They destroy tissue. Yes, skin cancer is a tissue they WILL in fact, destroy. They do it very very well. So, unless you want a FESTERING HOLE in your integumentary system, stay away from them. You want something that selectively targets malignant tissue, not all of your tissue. That does not stop people from going "Oh, I can use that to get rid of that lesion on my nose!" and ending up with half their face gone due to gangrene.
The existence of real, actually beneficial treatments for people who cannot use the safer medications available today should not be a foil against people who know just enough to be seriously dangerous about their self-care regimens.
Hence the quotes.
(That is to say, given that ALL THREE of the above things happen, and happen frequently enough to be a public health problem, I would not be at all surprised if people synthesized auric chloride using batshit horribad garage grade hydrochloric acid, and nitric acid, did a lacklustre refinement process through repeat crystallization using coffee filters, then proceeded to manufacture gold thiols of dubious species (hell, let's say they used onion juice just because. Why the fuck not.), and then inject them into their gnarled, twisted hands, because they saw the pricetag on the actual medication, and said "fuck that." There are people that inject silicone caulking, and
this crazy assed shit. FOR COSMETIC REASONS. All it takes is one really badly written how-to on the internet, and its off to the blue patch races.)