That just means you posted in the thread.
On the top-ish area of the screen there is the following "User Control Panel (0 new messages) â€¢ View your posts "
If you click on the View your posts, it will bring up a list of all of the threads you have created or posted in. They all have a star by them.
People are here to help each other out, so keep asking your questions! Other people are probably interested in the answers too!
Eating beachy since February 2010.