How subjective is "27 million users"? TikTok and it's ilk are such viral-driven products I imagine metrics like DAU are gamed to Narnia and back. They NEED thos

How subjective is "27 million users"? TikTok and it's ilk are such viral-driven products I imagine metrics like DAU are gamed to Narnia and back. They NEED those metrics to sing to get funding and advertisers.