2 Name: Kage~chan !v.YyOzCW4Q : 2015-11-05 22:00 ID:GHzGfqJh [Del]
When replying, the checkbox makes it so if checked, it will not make the original post go back to the top of the subforum.
If someone says "sage" in their post, it means that they believe that the thread was posted in an inappropriate spot for it.