From last few years the casting has changed drastically.
Earlier it was a real reality show. Controversial or interesting and popular faces from all fields were seen. Actors, cricketers, media personalities, social workers, fashion designers even criminals like Bunty were invited.
After that the show was run by the contestants on their own. BB didn't need to interfere much, in fights or arguments BB didn't take any side. That was a pure reality show.
Now it is mostly TV actors, a few models and one MTV reality show winner.
Most of them turn out to be boring and BB pushes them to create fake fights and faaltu ka muddas. BB tries very very hard to create drama and interferes too much into almost every fight and argument and becomes a judge. Every Saturday Salman warns like a teacher Mudda uthao mudda uthao. Dikh nahi rahe Dikh nahi rahe. It is way off from being a reality show.