>>10078
You are free to go along with anything the fandom came up with, but if someone makes a song about "Kaito hating icecream", it's in their right to do so, and you can agree or disagree with it, which won't validate or invalidate it.
It's that simple.
Most songs depict Miku as a cute, innocent girl. Is it canon? What about songs like Sweet Devil, or World is Mine? Are those canon? Are they not? Why, or why not?
Blank means blank, whether you like it or not. "Fanon" is not "canon", there's a reason we use different words. The fact that Vocaloids have much more fanon than canon is irrelevant.
Just because many people come up with or accept the same interpretation, doesn't make it official.
Anyone trying to pass something as "canon" would only lead to war due to different opinions/preferences. "Fanon" thrives because it's not limited by anything, especially itself.