It's usually got a lot of expats mixed in, primarily if it's in Tokyo. There's a shit ton of people who's main draw for things like streaming or youtube videos is they're in Tokyo Japan, so they make videos on the subject and can get loads of views from people who try to live vicariously through them with it. They have an abundance of free time, and usually are the type of people to talk about the "problems" of Japanese society and advocate for it's change despite the fact it's someone else's country they're just squatting in. They were also a large part of the blm protests in Tokyo after the Fentanyl Floyd incident, many of them tweeting about it on Japanese twitter as well. There's a whole leech-net of them on Youtube you can find who just hype and feed into each others audience.