To answer the implied question of "why?" when you say:
And now I cant ask a serious question!
You have what is known colloquially as "history". Specifically you have a history of asking bad or off-topic questions.
You have asked, in total, 10 questions on this site. 5 of those questions were closed, deleted and/or downvoted. For your information those ...
Before I start, let's get something out of the way:
So long as they have the appropriate privilege, a user can downvote a post for whatever reason.1
Though you haven't explicitly stated all of them, I am going to address a few of what I presume are your concerns:2
What is Super User supposed to be about?
I asked if something was possible and my ...