[odomination]

1) Yes, but if you know that they are doing it you could probably beat them, ESPESCIALLY if you have position on both of them. I've played with good players who can beat the daylights out of mediocre players with mediocre hands in position.
2) Not necessarily
3) Ehh, anyone who watches a couple rounds and knows that they are doing it should be able to tear them up by playing solid and letting them try to push you out or trap you for more bets. I would be looking to play SUPER solid hands against them. Any A2, A34, TJQK and I would probably forget about any AA hands that didnt have a 2 or 3 in them
4) See above, sit right behind them. See flops cheap with A34 and raise it up pre with ABB2 and good multiway hands.