Black metal as a genre. I could not believe that anyone seriously listened to that. It was either random noise or actually scary stuff (I am the black wizards actually scared me for some reason lol). But after enough exposure and playing Freezing moon myself, I actually got to enjoy it to the point where now I listend to black metal 80% of the time.
In the same vein, "Sons of Winter and Stars" by Wintersun was so unharmonized and terrible to me when I first listened to it, but after a few listens it became one of my favourite songs
As someone working in the tech industry (not from the US), the comparatively better working conditions and pay compared to most other jobs sadly create a big bubble for most people, where the ideas of exploitation seem like they only occur in manual labour jobs. There doesn't seem to be much of class consciousness when you and your colleagues are better off than most other people.