The action of designating content on the YouTube platform as having been viewed allows users to curate their viewing experience. This feature effectively signals to the platform that a video has been completed or adequately consumed, thus influencing subsequent content recommendations. For example, after an individual watches a tutorial on fixing a bicycle tire, marking it as viewed can prevent the same tutorial from being suggested repeatedly.
This functionality provides several key benefits. It aids in organizing viewing history, prevents repetitive suggestions, and helps users track their progress within a series of videos or playlists. Prior to its implementation, users often relied on memory or external methods to remember which content they had already seen, making content management less efficient and structured.