I have a long Wikipedia history, but that is not the point. There already was a CachyOS page, and it was removed. Why bother contributing stuff that will just be deleted again?
Most moderated spaces remove content that doesn't fit the community, Wikipedia does take that to the extreme but I still prefer that than the opposite extreme.
It might have been removed due to the editor's impression that CachyOS is not significantly different from Arch. With proof to the contrary the page may be restored.
There are a lot of derivative(I don't mean it in a negative way) distors out there, not sure if they all need pages.