Comments: one number, and it drops when you open the post

Comments now counts one thing everywhere — the menu, the New tab, the line above the list and the Home card in the app: new comments, meaning questions nobody on your team has seen yet. Open a post and its comments count as seen for the whole team, so the number drops for everyone. Emoji-only reactions and friends tagging friends are never counted, so there is nothing left «to clear». A question seen but not answered says No reply yet, without a number.