If you actually want to stop the trade of anything, you go shut down the source - not the distribution channel that lets you keep tabs on what's being traded wh

If you actually want to stop the trade of anything, you go shut down the source - not the distribution channel that lets you keep tabs on what's being traded where, between whom. See the somewhat recent media hysteria and stupidity around craigslist/similar sites and prostitution. The only thing accomplished was driving the distribution channels to other, less visible, less-easily-tracked places. Everything that was happening before is still happening now.