People who code often come to their technical opinions via aesthetics rather than legit technical reasons. On 4chan/g/ there are people who only code in C, or only code in Lisp, or only code in Ocaml, and there's nothing you can tell them to convince them to use a new language because their hero is Terry Davis and they imagine themselves as living in Serial Experiments Lain. They code on projects with no real world applicability. I think the appeal behind Terry Davis is that these people are all building their temple to God, in a way.

Obsidian.md

All of them if you delve deep enough

Computer Keyboard Enthusiasts

Celsius energy drinks.

I had a coworker evangelize about them so I decided to try them out. Every time I got one and tried it some complete random would come up 'Hey! You like Celsius? Have you tried the [whatever] flavors? [Other flavor] is my favorite!'

I found them all gross.

I don't know whether anyone has mentioned this -- gacha games. Like cults, it forces you to pay a lot of money, but never enough to satisfy them. It always leaves you in a state of frustration. Video gaming is supposed to be a hobby, but the level of attention and resources demanded by these games are insane.

Oh, a warhammer topic!

Warhammer - people at a local club have told me it is "heresy" to even refer to one page rules - a newish and very innovative wargame. That's the lifestyle players of course not everyone, the people who paint 20h a week while listening to Warhammer audio books play 8hs a week and do fuck all besides that. I have met loads of cool people in the hobby too, but omg those guys

Buying used panties from onlyfans sites.

vtubers

Nostr. I think the tech is cool, but the culture seems like some sort of cryptocurrency cult