1. You are fluent in the langauge.
2. While acquiring fluency, you learn the culture.
3. You will be able to hold your own w/o a local interperter.
4. You can change locals mind and let them see their news/version of events isn't all secular (e.g. laowai adapts culture, learns langauge, not to fit in, but complimentary to living/being in China, etc.)
So, I would say for someone that is fluent, it is the best time to go.
General tourism, business investment, FDI, etc I'd say yes don't be too special. Note that the links you used really reference tourists.
1. You are fluent in the langauge. 2. While acquiring fluency, you learn the culture. 3. You will be able to hold your own w/o a local interperter. 4. You can change locals mind and let them see their news/version of events isn't all secular (e.g. laowai adapts culture, learns langauge, not to fit in, but complimentary to living/being in China, etc.)
So, I would say for someone that is fluent, it is the best time to go.
General tourism, business investment, FDI, etc I'd say yes don't be too special. Note that the links you used really reference tourists.