Shown next to your comments — never your email. Required before you can post a comment.
Your last 5 — not a full log, just enough to help you find something again. Watching a video updates its spot here; it never records every visit.
These don't do anything yet — there's no data marketplace to sell into. This just records your preference now, so if that feature ever ships, your choice is already on file. You can change your mind anytime.