That definitely helps, but they will still have your IP address, if they decide to collect it. You’re subject to their privacy policy and whether they can resist govt pressure. You’re forced to trust the VPN provider — which is not how privacy should be. 

There are some new VPNs that claim to have no ability to log your IP, but they’re not widespread. My point is only that we can’t expect normies to understand that they need a VPN and moreover which type of VPN to use. 

I’m suggesting that it’s better to just bake in privacy into the nostr protocol to benefit everyone, including non-technical folks.