OK, interesting. I guess it's a personal thing. For me it's not just a question of whether I know or not. I also have to consider if there is anything I could reasonably do to prevent such things from happening. If there isn't, then I would consider whether I really need to use the system (for example, is this my only option because I live under an oppressive regime?).

I think this was the point of the GP asking, "How do I not unwittingly get CP being stored on my device?".