A few questions to ask yourself first.
A. Do you value your own artwork?
B. Are you proud to tell the world you created your own artwork?
C. Do you value other peoples artwork enough to not steal?
The answer to all of these should be YES! (If its no MySpace is that way --> )
Its a sad fact but un-watermarked large pictures are a rippers dream come true... DA is a proven gold mine for anybody wanting to take up art theft as a hobby, and just because you have a written disclaimer in your description stating that your artwork is not to be redistributed hardly makes a difference. Anybody who has browsed the net or received a dreaded note stating that your art has been ripped will know intimately how disheartening and sickening it is, and what an almost futile fight it is to try and get the artwork removed or the ripper shut down. Watermarks don't have to be horrible clunky things that destroy the artwork its supposed to be protecting, and they really could mean