Interestingly, the Chinese equivalent of eBay (taobao) does an extremely good job of recommendations for me. So much so that if I search for something, and can'

Interestingly, the Chinese equivalent of eBay (taobao) does an extremely good job of recommendations for me. So much so that if I search for something, and can't quite find what I'm looking for, often the exact thing I was looking for is a recommendation the next day (or a better version I didn't know exists). My suspicion is that they have teams of "professional shoppers" seeding the AI algorithms.