Making the drug and trying it on yourself is one thing. Sharing it with someone else who understands you and how you made it is somewhat similar. Convincing random people who don't know you to take it is crossing some sort of line, and setting up a situation where people are taking your homemade version of a non approved medication without even knowing it is just plain wrong. I know they are already taking heroin, but these are still people and not your lab rats. You shouldn't be making their decisions for them about what goes in their body.
In their do it yourself lab, what are they doing to remove stereoisomers?