How would they realize this? The site says they do pay the artists. I guess when it comes right down to it, you have to trust that sites actually do what they say they do. That's something that I've grown weary about concerning sites and people in general, you never know what they do and there's no way to tell if they're doing things properly. It's hard to trust the internet. But for someone who doesn't know about OCR and comes across "Legal Sounds", it sounds like a legitimate enough name for someone who isn't fluent in internet.
Not sure what I am even trying to argue at this point, just that you can't trust internetsites, which has been established I think. OC ReMix is a pretty trustworthy looking site, but it might look even more trustworthy if they release the new site design