>>63609958Three things.
1) She's a memelord. Her humor hit hard with the average 'streamwatcher' in NA. It propelled her to the front of the pack when Myth debuted.
2) Recognition. Because of her hitting the front of the pack for Hololive and there only really being indies beyond that at the time, she became the 'face' of vtubing in the EN world. That fed the algorythms to keep pushing people towards her and her streaming humor kept people checking back in every once in a while.
3) People find her cute. Just like every other vtuber out there, a portion of the audience just find her cute, want to fuck her, and it will take something insanely drastic for them to leave her. There's just more of them than the ither girls because the same % of a large pool means more actual headcount when you start dividing fans up into categories. Those people will buy Gura merch, SC, and stay membered no matter what.
She would make a small splash in Japan if she learned JP fully, but the viewers would quickly taper off when her humor wouldn't translate over and her obvious lack of understand for JP culture would be front and center. Even those who were fully inmersed for a while (FWMC, Kiara, and kinda Mori) aren't fully keyed in to newer JP memes/culture and they would fail to retain a large audience (unless Kiara and FWMC moved back to Japan).