An important thing to remember is that SR did NOT just sell drugs. They also sold hacking tools, identity theft kits, credit card fraud kits, and weapons.
It was not a harm-free marketplace. It was basically 'whichever criminal shit made him money' marketplace and drugs happened to top the list.
LOL @ getting down voted by Libertarians for a COMPLETELY TRUE statement that they wish wasn't true because it fucks up their bullshit narrative.