But it is more or less what you said:

> [...] women need to know what works and what doesn't.

I think men and women need to not treat people as sex objects regardless of how they dress. Saying that "women need to know 'what works'" is precisely victim-blaming, because it puts the onus on women, not men, to be responsible for men's behavior.

(Any genders above can be replaced with any other gender classification; it's irrelevant to the point.)