Why do some people not understand that looks is subjective?

[Anonymous]

And say you must be jealous of them, if you don't find another woman attractive? There was a question about celebrities and OP called me jealous for saying I never got the fuss about this celebrity..
I thought this forum was for giving opinions
I have no problem to say that someone's pretty, but if I don't find them ate, what am I supposed to say?

[Girlygovroom]

It is subjective to a certain extent, a symmetrical face is universally more attractive than a unsymmetrical one.