[AndyShields]

Basically people are ready to form negative opinions of women more than they are men.
Plenty of men in BB bitch, Ziggy, Liam and Brian did it loads but that was usually seen as 'straight talking' while Nicky, Laura and Charley were 'massive bitches' for it.
If a girl takes her clothes off she's seen as a 'slut' but if a guy does the same thing there's little negative reaction at all (Especially not from the type of people who actually do vote).
Mario was absolutely horrible and Steph went over him despite being actually quite neutral (Just a bit of a whiner).
BB voters just don't like women and are quicker to form a negative opinion of a pretty girl, or any girl in fact, then they are to form a negative opinion of a boy, especially a good looking one for the exact same thing.