You're perfectly right, of course. Just taking a photo from somewhere and posting that as Background - people doing that should be ashamed of themself. Yes, I have two packages with backgrounds in my portfolio, yes, they are photos, but my own, taken by myself, and bundled...nothing against nice background photos but bundling them and taking ones own photos should be the least!

 And nothing against good, nice texture sets, why not - not everybody can make models, and textures for popular clothing sets are allways welcome. But then, I don't think anyone here would complain against decently crafted texture sets. I think it's that flood of (for example) single textures for the multiplane cyclorama (in fact consisting of one .jpg-file) or things like that. In my opinion that's just disgusting, sorry if anyone is offended.