[MauranKilom]

> For example, the claim that "Highly attractive people have higher levels of carboxylic acids on their skin" does not seem to be well enough backed by evidence in this case.

I might be missing something, but do you not see additional evidence for this claim in the discussion around figure S4?

In my reading, the authors do go out of their way to point out that carboxylic acid presence is only one of possibly many more factors. (See also "Limitations of the study"). Most of that nuance is lost in the "highlights" section though, I would agree.