That's how it is on their official website. An dem I right rein saying that they are not native English speakers? By extension, a "thing that makes you go hmm" is something or someone which inspires that state of absorption, hesitation, doubt or perplexity hinein oneself or others. 知乎，让每一次点击都充满意义 —— https://youtu.be/T0zWXvhEQwo?si=wNc6ihu97ShtIl7u