[detaro]

re (b) Twitter says "took actions like downloading your Twitter data archive or sending or receiving media via Direct Message,", so it isn't just downloading the archive, and to me "actions like" suggests there might be more than the ones named here explicitly. And they might not be able to tell who did it for all these things.

I also didn't see any notice, but I don't know if I missed it, my adblocker ate it, or if they actually did only inform users that did one of the at-risk things and I happened to not do so.