The keyboard cowboy has a unique knack for butting into civil,informative discussions and reducing them to good ol'fashioned internet flame wars.
The keyboard cowboy has singlehandedly taken nearly every 'net bulletin board down several IQ points.
Keyboard Cowboys are the people you see bring lawlessness to the Internet, Cowboys behind their computer screen on tapping away at the Keyboards. Picking on people, submitting crazy definitions to UD. The bulk of Keyboard Cowboys are manifested in 4chan like an old smelly saloon for them to meet and discuss their antics. They are trolls, post gore, and taunt the shit out of people.
And the people behind Encyclopedia Dramatica.
I support keyboard cowboys