>>21694117What makes you think that? 4chan isn't a sekrit club, anyone can browse here easily.
Many chuubas have trails on this site, like Mori complaining about /v/ on twitter. Even Vox literally posted his voice and people told him to audition. There's also Pomu, if you're an old idolfag+erofag+2hufag /jp/ was the best place to discuss them.. she even slipped and called walfie by his old name walfas one time. Also Selen got exposed for stealing our thread memes and sharing them with the other nijiENs on discord, we only found out because the others told us about the stuff she shared.