To one of TW's points above, about the only reason I look at the Politics section here is I like to challenge my beliefs with those who think differently. Not to argue, which is why I don't post much, but I want to read other people's tales and reasoning on the news of the day. If you don't deeply question your own beliefs, you're doing yourself a disservice, IMO.
Of course, there are a few posters whose opinions I will gloss over, because they've proven themselves incapable of critical thought, putting together or following a logical argument, writing coherently or a combination of them. I don't block them, but I do keep scrolling.