For example, I block a person if I politely explain to him that he does not fit the criteria of my search. (he externally is very unpleasant to me, for example, and still does not correspond to other parameters) And this man continues to write. I have to send him to ignore, if a person does not understand the elementary things. I, too, is sometimes blocked only for the fact that I just go to visit someone's profile. I'm not surprised or indignant.