Also want to talk about the blind watermark on some Chinese social medias, to track user across different platforms.

It's extremely dangerous when someone post those screenshots with their identity to something like twitter, since twitter is blocked in China, and the police can catch and charge you if they can proof you have the account on those platforms.

The best way to defeat that is turning screenshots into pure white and black, works with text, not work with pics.

... And it's too late, I'm on the bed. I'll keep talking this tomorrow (if I can remember).