[TSiege]

Black macbooks are anodized aluminum which are thin coatings that would be removed when filing. It might look cool but it’d be the silvery color of raw aluminum

[stevenpetryk]

worth noting that silver macbooks are also anodized aluminum, so you'll also be filing off anodization

[aculver]

Yes, exactly. The point I was trying to make is that with a black finish, exposing the original color of the aluminum would be even more striking.