That's rather sad, if the community here thinks that the word "unfalsifiable" only refers to beliefs which are unfalsifiable in principle from the perspective of a competent rationalist, and that the word is not also used to refer to belief systems held by irrational people which are unfalsifiable from the insider/irrational perspective.

Then you should indeed be sad. An unfalsifiable claim is a claim that can not be falsified. Not only is it right there in the word it is a basic scientific principle. The people who present a claim happening to be irrational would be a separate issue.

Just say that the seduction community is universally or overwhelmingly irrational when it comes to handling counterevidence to their claims - and we can merrily disagree about the state of the universe. But unfalsifiable things can't be falsified.