Comment by scoofy

I noted in a comment above that this type of behavior, "Lol, nothing matters" is exactly the kind of behavior described by Sartre in Anti-Semite and Jew about the behavior of actual brownshirts and blackshirts that this salute is meant to directly reference:

https://en.wikipedia.org/wiki/Anti-Semite_and_Jew

It isn't that this type of behavior is designed to get something, it's that the type of mindset, one that has decided not to care anymore, to reject nuance and embrace a kind of good-guy/bad-guy explanation of complex problem in the world, ultimately leading to bad faith engagement... well all that leads to this type of behavior.

The idea is that this type of action isn't trying to achieve anything, it's the result of a worldview.