Pretty sure it happened in Europe and UK in early '00s too, from my limited experience. Sure, not in an obvious way, but it happened - mostly kept as a reference to go back when you're sure you've already seen/solved this or that problem before.

I mean, in Europe salespeople routinely take customer contact-lists with them whenever they move, everybody knows it. Developers do the equivalent stuff in their field. Asians are just a bit more blunt about it, because they have less to lose. Plenty of Europeans did the same sort of thing when moving to the US in 18th/19th century - I call it "hungry makes right".