Earlier quoted context omitted.
Just so you know, most of that “nazi dog whistle” stuff (like the ok sign) was fabricated by trolls on 4chan. So maybe think for yourself a little before you go accusing people of things based on Internet hearsay.
Wait, how is it possible that you stated you don’t know what the person was talking about and then turn around and tell me the precise origins of the thing? Did you Google it?
https://en.m.wikipedia.org/wiki/OK_gesture
So, I’m very skeptical of “secret Nazi dog whistle” nonsense.
If something is incorrect, it sufficient to say that it’s incorrect, and explain why. Claiming something is a secret dog whistle for Nazis just means that you don’t have any credible refutation about its correctness.