What does it mean to be "operating an electronic market"? Are you under the impression he was physically intermediating these transactions in some way? That the drugs passed through his hands?
That's one difference.
Ask Ross Ulbricht
> Are you under the impression [...] That the drugs passed through his hands?
They never said that, and it doesn't have to for being partially responsible. The Pirate Bay didn't host any copyrighted material, but the founders "were found guilty in the Pirate Bay trial in Sweden for assisting in copyright infringement and were sentenced to serve one year in prison and pay a fine." Hosting the website where the issue is rampant is sufficient; no infringing material (drugs or movies) have to pass through your hands
But I think we might be in agreement here since you said above that Ross had some responsibility. I also don't think it's the same as handing out the drugs yourself
In our legal system, they are in fact partially responsible if they don't disallow it and don't act upon reports. I'm not sure there is a difference whether it's physical or digital