Dreamwalker, there is not a day that I don't feel like smashing my head into a wall watching these people. But it isn't just them, Jen is just about the only one beside Zach who doesn't spout some new paranoid/conspiratorial theory at some point during the day.
They have no ability to recall events as they happened, so no, they can't remember who the vote was for, they can only obsess things like who's key was pulled and what significance that is about next week. OMG! My Key was in the middle, that must mean they wanted to throw me under the bus by making me feel safe. OMG, My key was first, that must mean I'm NOT in the alliance, I'm the first one to go up! OMG, Somebody spent 5 minutess in BR, and so and so was in there in the shower, that must mean they are talking about me.
ETA: Yes, Dick and Daniele have a huge target but I suspect it would have been there no matter what but Dick has made it 1 million times bigger.