"Hello, I'm sure this is all a big misunderstanding, but did you happen to root my computer?"
Not trying to be sarcastic, but I'm really curious what such an email could possibly achieve. If they tell you they haven't done anything, they're either lying or not - you wouldn't know. And really, what are the chances they would tell you that they have rooted your PC if they had?
At the risk of incurring massive downvotes: if anyone happens to have a key for the game laying around, I would be very interested in getting one. I'm sitting on the edge of my chair, waiting for this game to go public. :D
A note to those using Tor, though. Getting your .torrent files and magnet links over Tor is fine, but please don't route your P2P traffic over Tor. Bittorrent wasn't designed for anonymity, so you'll be sending all sorts of data that makes it possible to identify you anyway, but, more importantly, it makes the Tor network slow as hell.
Not trying to be sarcastic, but I'm really curious what such an email could possibly achieve. If they tell you they haven't done anything, they're either lying or not - you wouldn't know. And really, what are the chances they would tell you that they have rooted your PC if they had?