Why is it okay for lukeprog to post dating advice which are independent of gender-orientation-independent, but it's not okay to post advice which are dependent on gender-orientation?

Sorry, I thought the logic was clear, but I can see how that wouldn't have been clear:

ASSUME rationality is not changed by sexual orientation (see dlthomas if this is unclear)

IF (the advice is heterosexual oriented) THEN (the advice must be discussing something which is not rationality) OTHERWISE (the advice might be about rationality, but also still might be about something else)