refresh monkey
Someone who visits a regularly updated website and uses their browser's refresh capability frequently in an effort to view the updated content as soon as possible after it is posted. This especially applies to sites where the updated content includes a feature such as a message board where fans of the site try to get bragging rights by making the first post (aka fipo or fpotd).
You generally have to wade through several "first post" attempts from refresh monkeys before you get to the first real discussion.