Because when you start a public discourse it usually lasts about that length of time, and usually ends in either an agreement, or an agreement to disagree. With people like that nobody can have opinions of their own. I find it "funny" because of the fact that i myself suffer from a disorder that makes it where i cannot argue my own case from time to time due to my lack of ability to string words together as seamlessly as others. When people talk shit and get all pissy, that is fine to me. But when you decide "im going to block such and such because their views are different than mine", it brings it into a whole different ballfield.