I guess the point I was trying to make is that when someone doesn't credit stock or material from someone else, then it is implied (to me, at least) that the stuff is their own. To actually point out that you are using your own material (which I personally think is ridiculously redundant), says to me that you have something more to offer others, or that you are giving people the opportunity to grab said material and cut it up and use those said materials for their own. Sometimes I think people tend to sweat the small stuff, instead of just enjoying the artwork for what it is. I mean, I guess I'm just baffled people will actually look at a piece of my art, and when they don't see me credit my own material (and I always credit the stuff that belongs to others), say to themselves ("Ugh, I can't believe they worked so hard on this piece and didn't bother to tell me which stuff is actually theirs!")