Along with UP some people use an up arrow ^, some say "bump", and others TTT (To The Top).<br>
It's a good tool for important posts that are dropping down the board.<br>
However, like all tools, it can be abused too. Like people who post a gun for sale, and every three to four hours they run their ad to the top again. The annoyance factor along makes me not want to purchase whatever it is they're selling.