WHAT THE HELL IS AN OPUS???!!!
An "opus" is like the final speech/rant someone gives before they leave an organization or cause forever.
Let's say "Bob" is the chief member of "People for Pointless Stuff". If "Bob" decides to leave - say, because he is disgruntled - he might give an opus to the remaining members stating why he is leaving, and what has ticked him off. He may give htem advice on how to change, but will most likely never return the group.
"Opus" is also the name of the little penguin, if I'm not mistaken.
An opus is a parting essay posted by a disgruntled Freeper deluded into thinking anyone cares. See also: Freepercide.
http://www.freerepublic.com/focus/f-news/862546/posts