BB9: Why do people hate good people?

Im baffled as to why people dislike Mo, Kat, Darnell, Maysoon? I know they aint perfect but who is?? - its easy to separate the corn from the chaf in that house - yet people still hate them and love members of the 'whisper club' despite their bitchy antics towards 'b-block' - which is obviously a reflection of their inability to even comprehend any b-block member winning? Big brother should be a fun experience, yet the likes of Lisa, Luke, Stuart and Dale seem dead set on being miserable and nasty to people.