The reason is quite clear, and has already been mentioned by Panjul, because it is very rare that we will find gambling advertisements with the Indonesian internet network that filters gambling sites and also Google which filters advertisements for its users in Indonesia. So, it's very good for the BK8 team because it managed to trick the google algorithm so that it can display BK8 ads on youtube for Indonesian members.
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I Understand! Thank you!

I just didn't know Indonesia had such strict rules against advertising gambling sites.
So tough that this Google fulfills them. Although I know that Google does not always comply with the local laws of some countries. And even often fines are imposed on him in court.
This is such, as it were, an Internet hooligan on a global scale. 
No wonder the Chinese ignore it.