<p>When you post, your thread goes to the top of the discussion list. This helps you get posts on your thread because it is usually the top threads of the first page that people post on. So “bump” indicates what happens when you post. But to make a post on CC, you have to have 10 characters at least. Obviously, “bump” isn’t 10 characters, so we all put “10 char” after it to get the 10 characters we need. Anyway, that’s the way I have heard it…</p>