If a YouTube video’s owner has enabled comments, you can post comments and like, dislike, or reply to other people’s comments on a video. You can also edit or delete any of your own comments. Many videos are not moderated, meaning you can post whatever you like, no matter how offensive. If it’s useless, it will be downvoted. If it’s insightful or hilarious, it will be upvoted. Here’s 28 examples of the latter: quite possibly the funniest comments found on YouTube.