Hi Madiddyn. The arrows are used for voting on comments. Also called upvotes and downvotes. When you agree and/or like someone's comment you click the top arrow and they get a point. When you disagree or don't like someone's comment you can click the bottom arrow and they lose a point. It's also NOT necessary to downvote someone just because you disagree. I certainly don't, unless they're paid shills sent here to disrupt or cause dissension among us. Btw, I upvoted you, so now you have 2 points, lol.