Re: Decentralised crime fighting using private set intersection protocols
Destroying (i.e. supplanting) a relatively freely-trading thing with a system that makes those things less free and depletes their intrinsic worth?
But clearly appeasing the authorities to a reasonable extent can also lead to Bitcoin being more freely traded. It's pretty hard to freely trade an outlaw currency. Let's face reality like adults.Quote
No, sir, I don't like it.
Haha, I know where that's from 
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It would mean starting fresh. People who care about bitcoin's original intrinsic value would be forced to design a system that's substantially less susceptible to the central hierarchy of a small development crew, "feature" creep, mass pooling, and provider dependency. That would not be an easy task. ...To say the least. If, however, bitcoin ever fell to that point, it would be both a shame and an honorable endeavor.
Not starting fresh at all though. Cryptocurrency would have already made a big name for itself. The UTXO set (current spendable coins) can be forked, so use is incentivized, and there's no speculative risk of being "on the wrong chain". The weaknesses and proper countermeasures would be much clearer. I'm sure there's more.Thanks for the thoughtful post.
Edit: Though I hope it wouldn't ever come to having to create a separate underground chain, it's nice to have a contingency plan in mind.