And it's the only device that "normies" own that has reliable power and reliable internet 24/7. This means you can use it for nefarious purposes, even wastefully so, and it won't show up as suspicious battery drain or prematurely hitting the cell plan's data cap.

For a lot of hacker type stuff (esp. botnets and residential proxies), this is exactly what you want.

I used to believe that piracy couldn't come back in a significant way because people don't want to use computers any more, and phones are a really bad fit for p2p, even if running some hypothetical non-walled-garden OS that wouldn't have issues with that sort of thing. I entirely failed to appreciate the impact of cheap Android TV boxes here.