It's been a while since I've looked at it, but I believe it says something along the lines of "Apple-branded systems". Putting an Apple logo sticker on a Hackintosh was a common thing to do for this reason.

A PC with an Apple sticker on it is not an Apple-branded system, it is a PC with an Apple sticker on it. If you actually were to consider it an Apple-branded system, then it would be a trademark violation, which feels worse to me.