Yesh when I used VPN I mostly used the same one, just not to get any trouble. But after stopping using a VPN I logged in from 3 different countries within 10 days, without VPN. I was in Japan then Hong Kong and some days later Taiwan and didn't bother to use VPN. Nothing happened of course.
I expexted them to maybe contact me "for security reasons" because of the many different IPs but it seems there is no security in place for cases like this.
Be careful with gambling and VPN usage. If you are from a country where Stake is banned and you use a VPN to bypass that restriction, in case you will be asked for KYC documents, be ready that they'll lock your account because of violating Clause 5 of their Terms of Service.
Also, when you use a VPN, if you want to feel secure, don't use shared IPs because there is a chance someone may log in Stake with the IP address that VPN granted to you and if you log in too, then Stake will detect that there are two or more accounts using the same address and it's against their Terms of Service to use more than one account per IP. So, it's better to use a VPN with dedicated IP.
By the way, I think (I am not 100% sure) you can be okay with VPN usage if you are not from a restricted country and if you don't connect to a VPN server that's located in restricted country. To my mind, according to their ToS, they don't tolerate VPN when you try to bypass restrictions. But to be honest, when you know that casino will ask you for KYC documents in case you win big, what's the point of using a VPN? You'll have to reveal your identity and address, so, hiding of IP address will mean absolutely nothing in this case. But if you create an account and deposit small with the aim and intention to spend all of them, this is the case where I would risk.
It's sad when I have to repeat myself because people don't read the whole story.
My account is VERIFIED, with my GERMAN ADDRESS. So stake is well aware who I am and I don't hide anything. They even advise people to use VPN if you are geo restricted, Eddie said that several times on stream.
I think I will change my address with stake at some point soon, but only if it's not too much work.
Every user from Germany now uses VPN, since some months you cant log in from a German IP anymore. And stake knows they have hundreds if not thousands of players from Germany. None of those players gets banned but they are all online and active (as you can see in German chat on stake).