Of course it is quite acceptable to block someone of you do not like his or her profile or the way that person addresses you or comments in some way that you dislike. You certainly do not have to accept a certain form or style of language to would be totally acceptable to someone else...even if it goes to crude or dirty type talk. Not two persons are alike. is ia a matter of being civil...and for some it is to push the envelope and see just hoe far he or she can go and how much the other person will take. it is easy to ferget that we are behind a screen...we might not even dare to say things or act in certain manners in front of a real person. Good to remind ourselves of that sometimes.