I'm sorry to hear about people stealing your work, however you may want to find a better watermark that doesn't mar the image quite so badly while still protecting your work or you could make your own with a personal logo; I've seen people do that before and it works much better. This is a great image, but DA has always had notoriously terrible watermarks (this one is a little better than their old one, but still quite ugly), and I don't know about others, but I don't think I've ever faved an image that has one of their monstrosities killing it. And again, I don't know about others, but I also tend to unwatch artist who begin using DA watermarks on the majority of their work. I totally understand wanting to protect your hard work, and you do great stuff, but I hope you can find a better way of going about it.