But as you know, with the regulation "In Indonesia" while gambling is still prohibited except for Malaysia. They really brave to send the prize, maybe they will doing 2 option
- Sent money to user account with the estimation of that prize
- Or buy the motorcycle in dealer and ask customer to take it by them self.
Who know, cause I only get 8th ~XD
Even though they send in goods/products, I believe they will not provide any information about this company. Transferring money or asking to pick up the goods at the dealer makes sense. But, in my opinion, the possibility is to use a personal name or another business unit that does exist. Isn't it very easy to do a method like this. But it seems the option of transferring money is the easiest to do than sending real products. If it's like a powerbank as example, they can use a personal name, no worry about this company. but, as you said, maybe for some people will not giving their address just for powerbank.
Mostly any physical prize will be sent using personal name. I have experienced some when I was active in local casino long time ago when I was still single
. I received some prizes like T-Shirt, Hoodie and my best reward was a Blackberry Bold if I remember it correctly. All the reward was sent from a personal name and I do even think that it was a fake name. At that time I did not care about my privacy as I was a college student (less experiences) so I had no worry to share my address to receive the prizes. Now it is completely different, I wont share my address for gambling related things even if the prize is a motorcycle or a car since it can be something dangerous for my job career. 
Now the USA is attacking both cryptocurrencies and crypto-casinos. And it seems that anonymity will soon be forgotten.
Unless, of course, this financial monster is stopped. Or fail to trick
