The Subject: line of an article is what will first attract
people to read it---if it's vague or doesn't describe what's contained
within, no one will read the article. At the same time,
Subject: lines that're too wordy tend to be irritating. For
example:
Good
Subject: Building Emacs on a Sun Sparc under 4.1
Good
Subject: Tryin' to find Waldo in NJ.
Bad
Subject: I can't get emacs to work !!!
Bad
Subject: I'm desperately in search of the honorable Mr. Waldo in the state
of...
Simply put, try to think of what will best help the reader when he or
she encounters your article in a newsreading session.