Originally posted by Depression
First off, everyone should keep all of their PSDs.
Second, if you go to an actual GFX forum, not a general forum like NGU, you'll see that most pro GFXers don't feel the need to watermark their stuff. Because no one is going to steal it, because everyone knows who it belongs to.
I don't even consider NGU a gfx forum. I used to frequent gamerenders for awhile, until inactivity. There you will find some pros, probably some of the best(or you'd used to). Most did tag their stuff. Just because everyone on one forum knows who it belongs to, doesn't mean people from another forum know who it belongs to. I could easily take ganja's sig, throw my name on it, and claim it as my own on another forum.
Hell, check deviantart. Most people on there tag, text, watermark, whatever their work.