If I’ve already used nostr a few times without a vpn or tor browser, should I scrap the whole thing and start over with a fresh Npub? I’m not familiar with a lot of this stuff, but concerned about the IP leaks and privacy stuff obviously. I thought I read somewhere that your IP is visible to the clients and relays? If so, if I start using a vpn now, isn’t that pointless if my npub is already tied to the original IP address?