Rules regarding windows 8/10 and benchmarks has been around since Skylake launch, so this isn't a new thing. The rule page had simply been updated in November to make it up to date, but the windows rules would have been there previously. This isn't a major deal and nobody is calling you a cheat, it's just that we have to be consistent with rules and shouldn't make exceptions for one and not the other. If you believe other scores are out of line then feel free to report them and the mods will take a look at them