And I'm sorry, I didn't know I could be banned for having an opinion.
You can't. You can be for how you go about expressing it though. Try to bear that in mind, umkay?
To me, the issue isn't that he spent 5 minutes making a wallpaper "for fun" is not an issue. What is a problem, however, is that he didn't accredit the original artist when he posted this, even if it was just a line to give the URL the original image came from. That's simply not cricket.