Why would you want to create a YouTube Playlist? Think of it in the same context as wanting multiple categories for your WordPress blog.  Creating a YouTube Playlist (or ideally, multiple YouTube Playlists), can help you organize your video content and improve the user experience for your viewers.  I want my viewers to be able to easily see my content related to:  WordPress Development WordPress Plug-in Reviews Google Analytics Tips Google Ads Tips Facebook Ads Tips Content Creation Alexa Skill Development Google Action Development  ... and more.  The proof is in the data. Creating regular video content for YouTube improves your organic search ranking and quality traffic generation, and creating playlists enhances your audience's overall experience.  This keeps them coming back, and helps new users find you!