PSA: If you run a self-hosted server with a #nostr #relay be sure to use the relay through home VPN (via internal IP or internal DNS, like .local). If you put your home IP or dynamic DNS name people can easily find you. I have noticed this in people's relay lists and is bad personal opsec for sure.
Discussion
Yes and no. From security perspective it is still very easy to get someone's IP address. But restricting access to the relay from public internet is a great idea which saves a lot of tinkering with the relay itself.