Recently I posted my Pastel Goth girl skin on the Skindex because, well, I wanted more people to see my skins. I had a couple nice comments, but then somebody commented saying that they reported because it was stolen from HoodedPenguinz on PMC, a.k.a ME! They obviously did not read who posted the skin, just recognised it and reported it. As soon as he/she commented, about six more people reported it and commented saying that I was a thief.
I just want to put it out there that please, you need to be alert when looking at skins on the Skindex. I know a lot of the skins are stolen, but instead of reporting them straight away, try to work out if the person that posted it was the original creator!
I've also seen quite a few people report skins that are obviously not stolen etc, and then make a skin very similar and claim they came up with the idea. This has led me to believe a lot of people that report skins are not reporting them for unoriginal content, they're just jealous that the person who posted the skin came up with the idea before them. Please, if you're ever jealous, think before you click the report button. So what if they came up with the idea before you? You don't have copyright over that idea, and the artist didn't steal from you unless you made the skin and they reposted/edited it without your permission.
To sum it up, please think before you report, or someone might be upset!
=)