>>57898089
>>57898120
>>57898338
>>57898441
Delia/Jessie (Hanamusa) became popular on social media because of one fanartist who had an animation industry job promoting it so much. Since she had a lot of clout for being a pro artist, when she pushed this pairing so hard, it became popular with impressionable children caving to perceived online peer pressure.
https://www.tumblr.com/yamujiburo/714611835849080832/i-probably-should-have-started-doing-this-forever?source=share

At least nowadays, groomers produce the media all children consume.