>>106035745 (OP)Sayaka's channel--among a handful of other "creator's/influencer's" content--is owned by a network and has her content is purposefully marketed on 4chan for the sake of bolstering view count either through repeated mention of her, annoyance, or simply sexual attraction.
If you're a twitterfag and happen to have enough followers/engagement, you can be approached by one of these networks to have screenshots of your posts shared on 4chan--for a price of course.
Where is my proof? It was revealed to me in a passing thought, but really, I believe it to be self evident.