So when a girl shows serious interest they think they love her when in reality what they love is the validation.

I agree.

If they learn to be vulnerable from the beginning rather than play Alpha dog all the way up to the L word, I believe they will be more happy and more understanding of what's going on in the relationship. They also will communicate better.

I disagree that vulnerability is something you want to encourage, nor do I advocate "playing" alpha, instead of internalizing the behaviors.

I think that a better way to think about these things is to interrogate your own emotions instead of just following rules.

For sure these rules should never be applied without any discretion. I think an apt way to view the advice on this subreddit is to say to yourself, "is this action against the red pill rules?" if it is, that doesn't mean you have to categorically not do it- it means you should figure out WHY it's bad practice, consider WHY you want to do it anyway, and then make an informed decision.

I can imagine a scenario where any rule we come up with can be broken. But often, trusting our own intuition is what got us in trouble in the first place. That's why we make these guidelines, to replace intuition until you've practiced it enough to learn your own discretion.