It's a mixture of teenagers trying out shock humor, people trying to be ironic, people who don't identify as Nazis but certainly identify with many of their ideals and straight up Nazis. There's a lot of abyss-gazing that pushes people over the edge into extremism.

Exactly. People who are subjected to that imagery and messaging, even if "ironically" risk internalizing it over time.

/pol/ is not one person and it is in no way an organized movement. Some obviously sympathizes, other are edgelords. /pol/ seems like one of the last places where you can actually have a conversation with political adversaries without risking getting banned / shadowbanned or downvoted to obvlivion for having violated some snowflake safespace.