Bump to the top
Bump to the top is when you reply to a thread without commenting simply to get it back into the Latest Posts section of the forum for people to see it who might not have earlier.
It keeps the thread active and sometimes just a way to bookmark it so you can return later where you left off. There is a thread here somewhere that lists all of this.
http://www.freerepublic.com/focus/f-news/673536/posts
Try this thread