As Gautam said, Praneet didn't experience the isolation and the hatred that Gautam endured and is still enduring since the second week. It's easy to preach but difficult to follow it.
In my opinion, Gautam, along with Pritam, is the only positive and intelligent player in the house. Positivity doesn't only have to do with what you say but also your actions and your strategies. Gautam is one of the few players who hasn't played a dirty game till yet. He hasn't back stabbed his friends or been hypocritical.
Few instances of Gautam's supposed negativity:
In the second week, in spite of asking for forgiveness, Gautam continued to blame himself for the housemate's attitude towards him. He didn't hold grudges against any single one of them.
the same week, during Saturday's episode, the housemate's were throwing accusations towards him and instead of retaliating, he told Salman Khan he was counting lights in the room.
he didn't drag the issue of Soni abusing him or wishing bad for him and his career
rather than arguing with Diandra, he began singing to himself and ignored her
he again cleared matters with Karishma and hugged her, a few weeks back
during his verbal spat with Ali, he kept quite and ignored him rather than retaliating
though he still has issues with ali, he doesn't publicise them or stretch the issue of the fight like the other girls do
he always considered Upen as a brother and even during and after the fight, he tried to explain the problem to him
he's the only contestant (maybe Pritam) who actually respects Praneet because of his age and stature. The rest, just pretend to do it by addressing him with sir but they don't mean it. I know Puneet is playing an ugly game but I am talking in reference to the hypocritical behaviour of people towards him
lastly, during today's episode, Praneet unnecessarily took digs at him but Gautam maintained his cool.
Call me delusional for all I care but the truth is, Gautam and Pritam are the only two contestants who don't use others for their advantage. They play their game intelligently and positively unlike the rest.