After we was released from prison and started co operating with them, he came up with a plan to create this market in order to demonstrate how this scene works and collect some data.
This is why the market was without fees since the FBI was not allowed to collect actual profits from the drugs sales.
Source: Heard it directly from a guardian angel during my most recent Ayahuasca session, and they never lied to me before. So there's that.
Seriously how hard can be for LE to turn fees on ?
Especially if that bring more trustworthy