If they're highering engineers at "20% above Facebook compensation", it really doesn't make sense. In china they could higher roughly 15 top engineers for the price of 1 engineer in the bay area (in China there's an even bigger surplus of engineering talent).
Makes perfect sense. Poaching FB's (or any competition for that matter) employees potentially makes them easier to compete with and increases the cost for FB to compete.
https://www.cnbc.com/2019/10/14/tiktok-has-mountain-view-off...