Today, someone can find a lab willing to synthesize a chemical for very cheap with the intention of selling it for a huge profit online. That person then posts on a board such as bluelight or erowid, where the first introduction of its ABUSE is documented. Users of the board are attracted to the novelty of the new substance, and are encouraged by the community to follow the behavior of 'researching and sharing' by acquiring said substance, ingesting, and then relaying back to the board about the experience. They are likely some of the first people in all of history to ingest the substance. If you don't think this is inherently dangerous behavior I don't know what to tell you. I don't think it detracts from their goal of harm reduction, but that element of the community exists and I do think it warrants more scrutiny than immediately dismissing my argument.
If you want to read a well researched book on the phenomenon, pick up Drugs 2.0 by Mike Power. It's on amazon's UK site.
As long as quasi-legal analogues and new substances are going to be sold as cheap highs in head shops and adult video stores and the like, which they most certainly are now that more and more designer drugs are being produced everyday, I certainly want knowledgable people sharing their bad, and good experiences with others.
If some people enjoy beta-testing new substances knowing their long-term safety profile is completely unknown, would you rather it be done completely in the dark, or at least with ideas of dosage ranges, knowledge of warning signs of overdose,etc etc.
While it's clear that Shulgin was more responsible than a lot of budding teenage psychonauts, that's not always the case (Lilly's use of ketamine comes to mind), and it's not clear what he was doing was inherently less dangerous. He was often the first person in history to test a substance.