ナマズ初見検出＆参加者メモ is a Chrome extension designed to enhance the management of YouTube live streams. It automatically identifies first-time commenters with a red badge and distinguishes repeat visitors with a green badge, making it easier for streamers to engage with their audience. Users can create personalized notes for each participant, which helps in remembering their preferences and past interactions. The tool also allows access to a history of the latest 100 comments from each user, ensuring streamers can keep track of their audience effectively.

The extension features a dedicated dashboard displaying all participant information in an organized manner. Users can search, edit, and delete entries as needed. Data is stored locally in the browser, ensuring privacy and security. However, users should note that uninstalling the extension or deleting their browser profile will result in data loss. Overall, this tool is an excellent addition for anyone looking to enhance their live streaming experience on YouTube.