Comment by dumbledoren

> What motivates such a rude answer?

Gentrification.

> Nothing in his post suggests that he would go gentrify a low COL place

Nobody who moves out of the richer countries goes to a richer country. This includes the ultra-rich: Even they move to a place where their money will go much further, even if that is a district in London that they can comfortably afford. So it always ends up in gentrification.