Let me drop some knowledge on you who are confused by Halcylon's post. When you comment on a post, it saves the activity in your profile activity feed. So, instead of searching through the 1000's of posts to find this one again at some future date, the commenting party would merely need to check their activity to find the particular comment and return immediately to the post no matter how far the post has fallen into the dark abyss. Thereby: "Saved".