Seriously: Imagine a comment or an article written in a similar tone on LW. How many votes would it get?

Um, I think this is a silly argument, honestly. As the name makes reasonably clear, Man Boobz is a humor and satire website. Unlike most articles posted here at LW, they do not claim to qualify for any standard of rational argument. What's useful about them is in their pointing to some of Athol Kay's published opinions, and perhaps pointing out some undesirable connotations of these opinions.

Athol Kay: [A Red Pill Woman] understands that there is a sexual marketplace, and that women have an earlier peak of sexual desirability than men do.

Let me try to steel-man MB's critique of this statement. Why is it especially important for a RPW to understand this - especially when the basic notion is clearly understood by any COSMO reader (which is a rather low standard)? Athol Kay does not explain how this understanding is supposed to pay rent in terms of improved results. And it is clear that, unless some special care is taken (which Athol Kay does not point out), a naïve interpretation of such "understanding" has unpleasant and unhelpful connotations.

Keep in mind that PUA/game works best when it manages to disrupt the mainstream understanding of "sexual market value" as opposed to accepting it uncritically, and the seduction community is successfully developing "girl game" methods which can allow women to be more successful in the market. By failing to point this out, Kay is under-serving Red Pill women especially badly.

Athol Kay: [A Red Pill Woman] understands that divorce sucks and is more akin to getting treatment for cancer than having cosmetic surgery.

This falls under Bastiat's fallacy of "what is seen and what is not seen". We see that divorce sucks; what we do not see is that divorce is nonethess rational whenever not divorcing would suck even more.