> If this was a thing, international travel would halt because you would need to countercheck everything you've ever done online with the laws of the country you are flying to.

I mean, for many of us that’s already a problem, and has been for a long time. Ever mentioned your same-sex partner somewhere a Government might be able to find it? There’s now a whole bunch of countries you can’t visit or pass through without being at risk of imprisonment or worse, yay.