A few nights ago I was thinking of easy ways to make money. I came up with the idea of setting up a vendor account, but instead of selling drugs myself put up the same listings as other well known and reliable vendors at a slightly higher price and secretly act as a broker without either the buyer or other vendor knowing. Profiting off the small difference in price for pretty much doing nothing. This would only require a small amount of capital to start up and be impossible to get caught selling anything. It is not as though vendors are putting their logo on the packages or leaving any information that could be used to identify them. Alas I am too lazy to do this, but LE could do something similar to this to harvest buyer information. They don't have to be the ones to sell the drugs, but they will have all the buyer's address information if not using a drop with bogus name. With this list of people who are known to have drugs they can use parallel construction to make some busts. Maybe a buyer is also a vendor and now they are on the radar of LE?
Any LEO who thinks your "idea" is even remotely clever is retarded. They don't get a big bust to show for their work and by facilitating deals they're actively making the drug "problem" worse so more work for them. 2/10 would not idea.