It is not just big, it is mega big. WhatsApp had world dominance and their product had to deliver instant messages, including photos, videos and other features

It is not just big, it is mega big. WhatsApp had world dominance and their product had to deliver instant messages, including photos, videos and other features over crappy internet connections and they managed to build, manage and sustain an amazing consumer product with a handful of people, so 16k for an online job board is laughable and embarrassing. It's just a website after all.