While I get that, tolerating absolute bullshit pseudoscience (or anti-science) and letting people think it is a fact is exactly why there is a huge western general anti-science sentiment harming millions of people.

You have to call them out and shame them for spouting disinformation bullshit as “science” and facts.

The difference in your analogy is that fountain pen enthusiasts never* spout pseudoscience and disinformation as justification and/or discount actual science and blind tests. Audiophiles do that regularly…

Yes, if they say that they love designs, collections, how it makes them feel, whatever, sure. Don’t tolerate lying and pseudoscience though.