A mix of three things. It started with Jade's comments. They started to ease off controversy after that and nudity got scarce too and they played it safe. The tackiness introduced in BB11 and built upon on the move to Channel 5, I dislike those montages and music, the names on screen I can live with and Marcus I can live with. The fundamental rule of the outside world was also broke which I hated it defeats the social experiment aspect of the show.