Just to clarify, leaking traffic is one thing and sites detecting you are using a VPN, are two different things, no? Most of the times, you are being blocked when you are not leaking but they detect your setup. As one commenter mentioned, if they block me because I am using a VPN, then I'm more than happy in avoiding them. The point of a VPN is to protect your privacy, which breaks when your traffic is leaking. Also, most VPN providers are logging everything, thats why I've suggested setting up your own, which can be done in ways, that most service providers can't detect.