Let's say Bitcoin was strongly regulated globally. Anyone caught running mining software or transacting in Bitcoin has their hands cut off. Ouch.
I can still download mining software and run it on my computer, and connect through the network through Tor. Blocks are 1 MB every 15 minutes, it's noise. I don't need to know anyone or have anyone's identities. It's really really hard to catch me. Like, wayyyyy harder than the child pornography example.
Well, ok but what's the incentive then for me to use Bitcoin in such a world? Not sure there, like what's the "USD price" per Bitcoin. Ya this part seems tough. If all countries strongly ban Bitcoin with harsh penalties, that seems like it would put a kabosh on my ability to turn it into real world currency. But still could be used for digital goods.