Clearly she had to be someone from a season before 2009 because she hasnt logged off her account long enough to be anyone since then.....so yeah she is most likely someone irrelevant.
I could understand maybe having fucked over 1 person per season but really first you fucked up AJ, and then you fucked over Topaz and now Gary is going to be fucked over :(
Their twists do not even make sense it is like they want Peter to win.