"Conversely, it is used all the time for censorship and policing in China." Sure- in China. I'm not in China. Censorship might be a problem, but outside of tha

"Conversely, it is used all the time for censorship and policing in China." Sure- in China. I'm not in China. Censorship might be a problem, but outside of that, I'd much rather have the Chinese government (and even Chinese local police!) have my metadata, and even data, than give the US national security apparatus the same access. Corporate IP is another exception to this- it's pretty clearly better that the US, rather than China, have access to my work data. But for, say, a Snowden-esque whistleblower in the US- can you really say they'd be better off with, say, DHS having access to all their data instead of the Chinese government? Obviously ideally nobody would, but for them, a system whose failure mode is "China can associate your IP and email address" is, I believe, dramatically better than "DHS/NSA can associate your IP and email address".