Our Age of Character Assassination

I am not one for romanticizing the past because in every alleged golden age you find grumblers looking longingly to some earlier alleged golden age. Nevertheless, our own time has earned its share of criticism. For example, we live in a time when, for many, character assassination is the preferred way to rebut the people they disagree with. Why bother to painstakingly refute positions you dislike when instead you can accuse their advocates of one vice or another?