You'd think weapons would be the thing to interest these imaginary "terrorists" the US gov't keeps yakking about to distract everyone from the fact they're eating food their parents wouldn't have fed to stray dogs.
Just a thought.
Few people used The Armory because the majority of users could obtain weapons cheaper, more conveniently and
legally elsewhere. Delivery is the weak point for illegal goods which are physical - it's where the illegal activity is most vulnerable. Bitcoin is obviously attractive for laundering the proceeds of those illegal activities, though.
With child porn, you have a product which can be delivered digitally - the weak link in the chain is payment. When you can anonymise both payment and delivery, you lessen the risk of detection.
So basically the fearsome terrorists are mostly shut-in wankers of great danger. Oh how the worldview changes by the minute.
Seriously now. What terrorists?