Nah. You're over-reacting to an extremely common, normal, and acceptable social tool because you have an agenda. What that is could be a couple of things, from

Nah. You're over-reacting to an extremely common, normal, and acceptable social tool because you have an agenda. What that is could be a couple of things, from a petty dislike of anyone who has anything to be proud about to an imbalanced flinch reflex against any cultural affinity. Referencing the method's origins offers social proof that it works. That's often a critical aspect of persuasion. It's completely normal and common. "Credibility capture" is an invented and weird term, and it would both apply and not apply here in the inverse that you would want it to. In the manner that it applies when offering a positive connotation, again, social proof is necessary much of the time. In the manner that it doesn't apply when attempting negative connotation, this person has every right to "capture credibility" from the culture to which they belong; especially when referencing a cultural method. This is a nightmare autistic-style conversation, by the way. In your attempt to de-normalize the normal. Appreciate it.