Some comments are so stupid and off-topic, example https://news.ycombinator.com/item?id=22766042, a simple downvote is enough. Engaging in a reply is IMHO just feeding trolls who are trying to be edgy/funny and not add value to the discussion. "He's the one" (in the example), the reply to the "He's the one", the reply to that reply for example. Same for "+1", "LOL" and other one word exclamation comments. Looking at your comments, like "That will touch off the hoarding of kitty litter!", the downvotes are IMHO justified and I'd like to see less of those. I'm kind of saying they're a hint on the quality of said comment.