Well they ditched windows xp so who knows.People play WoW even though it scans your entire system for what is open and don't complain about it. Unless you say they can contact you, they can't, so where is the big problem? Unless you have something to hide, who cares
I doubt it, DICE and EA would lose out way too much by cutting off a massive section of the market. Very, very, very few people have a Sandy Bridge or Bulldozer chip, where as the majority of gamers have either a Core2, Nehalem, Athlon II or Phenom II system, and even less of those people will build an entire new system just for one game.
I see no reason why this game, which must also be compatible to outdated console technologies, will require so much power that it will jump entire generations. No game out now needs an i5/7 to run or even struggles without one, and there is 0 reason to believe why this game wouldn't run well on the "average" technology being used