You're all reading too much into this. This isn't a mastermind plan to stop all illegal activity. It's a simple plan to take some money from assholes because I think it'd be deserved and funny.
They are minding their own business. You are trying to take their money because you think it would be funny. Who are the assholes again?
Ugh, you guys are no fun. All of you and I know that if enough people with enough BTC did this, it would work. It's not unfair manipulation of the market if we're all in on it and it certainly would work.
No, it would not work for about 1000 reasons, but most notably everyone would be looking to get out ahead of everyone else. You underestimate the number of assholes on the other side of the coin, so to speak.
I don't care if some strung out, unemployed little piece of shit drug-dealing programmer like me thinks he can spy on the forums and get wind of this. Good luck telling the other 99% of BTC users in that little group that are dumb as rocks not to buy any BTC or do any business for a week.
Person A operates on a sohisticated underground network of anonymous trade, provides a considerable amount of value and stability to an up-and-coming digital currency, and provides access to goods and services that for reasons that may or may not apply, have been made unavailable to the general public by a general authority.
Person B posted a baseless idea on some forums in an attempt to rally others against person A in the interest of personal profit and because he probably deserves it.
One of them is dumb as rocks.
You can all live in pretend land where everything is great. I say if hackers and drug dealers think they can turn this into the wild west where anything goes, giddeyup, cuz they're not the only ones who like to cause chaos.
They set up all of the anonymous trade networks for the sole purpose of creating the smallest amount of chaos in their business model. Meanwhile, you are benefiting from their activities (assuming you own even 1 BTC), and attempting to use that small amount of leverage to "cause chaos", citing your obvious social/moral superiorty, intelligence, and the desire to take their money.
I'm going to have to think on this a little longer before I choose sides.