It's an interesting case - they're unlikely to have any legal impact on me and my ad views are probably of very low value to them, lacking even a common languag

It's an interesting case - they're unlikely to have any legal impact on me and my ad views are probably of very low value to them, lacking even a common language with most ads. Some people feel more comfortable with a government they voted in having their information, but ultimately one that's in some ways an adversary of your state is far less likely to have any impact on your life than one which is in your own state. Additionally, restrictions on things like copyright aren't nearly as draconian in China - last I tried Baidu's cloud drive service they offered a torrent downloader built into the thing. Other speech restrictions are obviously very nasty and present, but as you're not a citizen there's nothing they can really do to you.