Ok, let's get one thing straight: Rachel WON BB 13, and married Brendon. Kristen got dumped by her boyfriend for cheating on him on NATIONAL TV with Hayden.
This is when Rachel fucked up the meaning of Floaters. True Floaters are players like Dr Will (BB2), Jun Song, Erika (BB7), Shelly Moore, and Andy Herren. Floaters DO play the game, and are ultimately loyal to themselves. They usually don't win competitions because they don't have to, and aren't in danger of eviction. Not only do they Float to who's in power, and play all sides, but they manipulate where they go. Floating done right is some of the best social maneuvering/manipulation.
Kathy, Adam, Joe, Victoria, etc are just non game entities or Coasters if you would. They think they know how to play the game, but they don't, and usually just vote with the majority, and Coast until their picked off.
I remember Rachel on the feeds the night before trying to craft the perfect insult to use against Kristen and she came up with the "floaters/life vest" thing. She's tv gold