I wrote an article on this recently about how it is weak to block someone for intellectual disagreement. I had a person block me for presenting real facts in a polite and logical way that were contrary to the opinion claims the other author was making. In my view, if you cannot defend your claims intellectually, using facts, you should not write on a social platform. I will block trolls, but I appreciate intellectual discussion and I am not overly concerned how polite it is, even if I try and be polite myself.