Sure, maybe you can make entry nodes discoverable by users without them being discoverable by the feds. And maybe new users can get the software without going to a central location. And maybe you can distribute bug fixes securely without a central server, and without the people with the keys to sign the bug fixes getting compromised. And maybe you can deal with 90% of the peers being created and controlled by the feds. And maybe you're secure against any and all types of DOS. Maybe you're undetectable by deep packet inspection if every ISP was forced to perform it. And maybe there's no way to grief or spam the network into being useless. And maybe you can tolerate coordinated police operations, where a single bug in the software gets a hundred of your best sellers carted off to jail. And maybe the market will still be going strong after that's happened 5 or 6 times.

But I'm going to reserve judgement until I've seen it working.