What strategy do gambling developers to expand their market to countries which do not allow any type of gambling?
Do they continue with allowing users to use VPN, or do they have "some trick"?
I don't think they do. I think it'd be a lot better to expand their influence in places they already have a stable player base instead of spreading their influence in countries being tightly guarded, especially since it might cause some issues. I also don't think VPN is an option, afaik some casinos don't allow it and even if they do, you'd still be hit by KYC so if you state a fake country at registration then well, you've basically ruined your account. And if there ever was a trick to be used, it's probably called money.
I don't know exactly, I had a bad thing on my mind, they are bribing government officials and Police in order to keep operating, This is my assumption only, maybe you are here and can tell the truth.
I think that would work for physical casinos but rarely online? Most stuff online leaves a track after all that can't exactly be erased permanently and can easily lead to them being caught if investigated. Not that I really know much about it though, just giving what I think.