You finish a video, have a thought, and then have to hunt for where to leave it. That small detour can break the moment. The conversation belongs on the video page, close to the player, so viewers can respond while the details are still fresh.
Keep the thread in context
A shared comment feed can blur which video a response is about, especially when someone arrives from an older post or a listing page. A thread attached to one video gives every comment a clear subject. Viewers can follow a reply without guessing where it belongs.
Make the next step obvious
After the video, the comment area should be easy to spot without competing with the player while it is still on screen. A clear prompt and a visible thread are more useful than extra buttons scattered around the page. The aim is simple: watch, find the conversation, and take part.
Leave room for real responses
Not every viewer has a long response ready; some will ask a question, reply to another person, or leave a brief reaction. A thread should make those different contributions easy to read in sequence. For the administrator, keeping comments with their video also makes it easier to understand what viewers are responding to.