Unfortunately, this doesn't just touch on whether a thing can be judged in any specific capacity objectively. People "like" or "dislike" things for too many reasons to reason about them.

There's a sort of masochism in many of us that results in things that are slightly painful -- e.g. consuming capsaicin -- being pleasurable. Many people are also drawn to abnormalities in human and other physiques and other statistical oddities in nature for various reasons.

Then there are people who perceive the world differently (e.g. the colorblind, the blind, the deaf) who perceive the same things very differently and will thus have differently-formed subjective experiences of the same things as 'standard' humans.

Yes, subjective ratings can correlate. However, that does not mean they're any closer to objective, or any closer to validity or invalidity.