I have also wondered this. Will LE actually send out 1/8th of whatever just to collect the address? I have seen several vendors that take lots of orders but never deliver, I can only assume that they are LE and are trying to profile with their addresses that they are collecting. can see them advertising and taking the order but I dont see them actually delivering it. Maybe im wrong. But, I think they would be breaking tons of laws on their own, if they were to do that (Yes, I realize that they break laws every day and not care). Even when they bust someone face to face, they never let the perp take the stash and let them smoke it and then grab em. Also, I know that people change their username on the market about as many times as I change my depends underwear on a daily basis. It literally takes 10 seconds to make a new account and xfer btc into it. I know it says that there are 44k users on the market, but if there are 5k active unique users, I would be very surprised.