The fake seller issue is independent of the honeypot issue. There was nothing stopping anyone from creating fake sellers on the original Silk Road. I assume the main reason it didn't happen is that doing so would only help catch buyers, and governments really want to catch sellers.
I think you missunderstand me... I'm saying what if the sellers are also honeypots? Encryption means nothing if the NSA created the "sellers" key in the first place.
My point is that you don't have to control the marketplace itself in order to create honeypot sellers. There was nothing stopping law enforcement from registering honeypot sellers on the original Silk Road. Controlling the marketplace itself would let them avoid the (trivial) registration fee to create a honeypot seller, but doesn't otherwise give them any extra power.
