That would be you - you jump on anything to call someone a liar. you ARE humorous.
Maybe you can help me out then..... What do we call it when a person states something untrue?
Perhaps you look at the facts that others present and perhaps check out the veracity of that info and if you find some things that you dispute you can say that you disagree or that you agree to disagree but to continually call persons liars is truly disgustingly immature.
You have stated that you look at the glass as half full - so already you can see that other people have different viewpoints. So grow up and quit acting like you are in the fourth grade.