Yes, using irrelevant tags can hurt your YouTube video’s performance. While it might be tempting to use popular but unrelated tags to gain more views, this practice is considered tag spamming and violates YouTube’s policies. It can lead to poor user experience, decreased watch time, and potential penalties from YouTube. Instead, focus on using accurate, relevant tags that truly represent your content. This approach will help you attract the right audience and improve your video’s overall performance in the long run.