Before writing the body: it's a lead in
After writing the body: it's a summary
Never: it's redundant
In uppercase: it might be ignored otherwise
As the entire message: I'm a PHB
Results (525 votes). Check out past polls.
There is no Extraterrestrial life
There aren't any suitably capable Extraterrestrials
Interstellar travel is too difficult
We're too uncool / not worth the trouble
What do you mean they haven't visited?
Results (517 votes). Check out past polls.