not to mention, that most of those "VPN friendly" casinos don't really care if a VPN is being used as long as you are losing...
but as soon as you win big and try to withdraw, they will say you violated the terms and ban you for good, and it's all within their right since you accepted the terms.
Exactly! We have seen more than a lot of cases that casinos use this kind of method, in order to get as much as possible. If not all, since gamblers will play there until they hit something big in order to withdraw and see the bitter truth. I learned it the hard way too and from then on, never again VPN.

I do agree, they doesn't care if you uses VPN specially if you are losing money. However, there could be changes when they see you suddenly hitting big and then maybe question or have doubts and then they gonna throw in your face the KYC mandatory ToS.
And you can't do anything about it, as in the beginning they could be friendly and so called pro-VPN, but it they have a slight doubts and suspected that something is not right when you win big, then better be ready to have problems when withdrawing. Not necessarily they will get you ban, but they could investigate and will ask for many personal details on you defeating the very purpose of using VPN to hide your identify.