While this is true, I would also mention that pirating content is strictly illegal in the US and many other countries, and a company like Coinbase could be charged with "harboring pirates" simply by not disclosing information about an investigated person.

If you're meddling in illegal activities, you're exposing yourself to the wrath of the law. I'm not saying that Coinbase didn't go beyond their duty to help, this could have been very much the case, but Coinbase has its own politics to protect.

So if anything, I would say Coinbase is a little questionable in terms of privacy, but their concern is to continue running their business, even if it means helping the government. I'm sure there's some quid pro quo at some level for Coinbase having helped the investigation.

Unfortunately, while Coinbase may have crossed some boundaries with their assistance in the investigation, Coinbase has also opened the door for many more people to have access to BTC in the US, and that's at least a win for cryptocurrency.

Having said that, I am carefully keeping an eye on Coinbase because they are very much tied to banking, which many of us in the cryptocurrency community have quite a bit to say about.