Why everything on this sub feel so negative?

I mean everyday I see posts of people bashing Mumbai, it's peoples, local trains, travelling time. I wonder if people don't feel these problems in other Metro cities? I am not saying that we should not bring up these issues but we should also give credit where it's due right? People here make me feel like they are forced by someone to live in Mumbai. If that's not the case, why don't they leave? I mean if you have this much problem with the city you are free to leave right? Again, I am saying this not because the abundance of negative posts but because of lack of positive posts. Everyone just keeps bashing Mumbai for this or other reason.