Up until yesterday, I had 8,120 reputation; now [my profile](https://stackoverflow.com/users/494543/fasih-hansmukh) reports ~~3,991~~ 2,128. It makes me feel like crying and I hate that too.

Is this the real reputation count logic of SO? I hate this. You don't even care to notify or something else? Why would they take or increase reputation when they know there is something wrong? It hurts a lot in end when you see such a huge loss.