>>97521117A lot of recent jp trends are driven entirely by streamers and influencers. Streaming is super, super huge in japan right now. Like colossal. Bigger than anime. And streamers maraud like locusts from one trend to another in their voracious pursuit of fresh content, which means any new, novel thing is instantly ubiquitous. If a new thing continues to get content to feed the swarm, like Poppy's episodic releases, it'll snowball into a cultural phenomenon.
It was funny browsing secondhand stores and seeing all the merch for yesteryears streaming trends that people parted with as soon as the zeitgeist had moved on.