Again, we have to define "niche". Are video games only popular in a "small niche community"? Is being more popular on a website more normalized than being more popular in a traditional club?
The original rebuttal asked for a source and the source was a personal experience. Thar doesn't mean it's the only area, nor does it prove/disprove it as a niche.
I saw an Onlyfans QR code at a gas station, I think it may be less niche than people give it credit for. It's just that westrn society, as usual, does a good job suppressing knowledge in the topic. so many circles are underground.
It just feels werid calling a multi billion dollar empire "a niche".