I am not sure this is an appropriate question or not. It looks like I'm being 'targeted' by someone on Math S.E. I got so many downvotes today (yesterday I got 1 downvote) for no reason and no one admitted it. I can accept it if I get downvotes because my answers or questions are really bad but they seem fine to me, nothing is wrong with those yet I still get downvotes. It's really frustrating me.
Is kind of behavior permitted here?
As you can see in the printscreen picture above, I got serial downvotes again two days ago. Luckily, I did not get online on that day so it did not give me a bad mood and also the reputation has been reversed. Does the user who did this to me get a punishment or at least a warning from the moderators because of his/her action? I am quite sure (s)he is an adult user but how come (s)he did this to kid like me? In my opinion, what (s)he did to me is really unacceptable and gives a bad role model. It also changes my viewpoint to adult users here.