How do I block a specific person

Darci
I really enjoy this app but there are a few people on here that drive me crazy.  I just don't want to read their posts or responses anymore. I think we all know the type.,, people who argue to argue, people who are ignorant on most subjects but act just the opposite. Everyone has a right to an opinion but when you use it to go to war over literally everything and every topic...... Come on now.   So sorry this turned into a rant...