I've said on more than a few occasions that I don't mind when people re-post my work. I consider it flattering that they think enough of my efforts that they want to show other people. Obviously, I prefer if they at least give me credit, but I know that's not really going to happen most of the time. At the end of the day, it's still just porn, and more often than not, people aren't going to take that extra effort to identify the original creator. Besides, I can't get too upset - after all, I use other people's work (granted, I modify almost everything pretty heavily) without giving credit. So as long as people are enjoying it out there, I'm happy.
However, I do get excited when someone posts one of my modified pictures (cropped to remove my commentary), and passes it off as a real shemale. For instance, I found this PICTURE which had been reposted by two sites before it landed on that blog. For people who don't recognize it, that's a picture I used for my "Feminized Husbands" story. For those who don't, here are the frames featuring that model:
Sure, that looks real enough, right? It's not. This is the original picture:
I'll admit that it's one of my better modifications (though it wasn't a high degree of difficulty), but it's still nice to see that there are people out there who look at my work and can't tell the difference between it and the real thing.