I don't like this. Why not just use 443? 444 could be blocked at the router level, making relays easily censored. You can't block 443 without blocking the world wide web.
New NIP proposed...
(unmerged)NIP-100: Default Relay Port Standard
This document standardizes the default network port for Nostr relays, each relay can serve it services on `4444` port as default.
https://github.com/nostr-protocol/nips/pull/852
NIPs Repo Status
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Total indexed NIPs: 132
Unmerged draft NIPs: 77
Merged draft NIPs: 48
final NIPs: 6
Generated by codeberg.org/nostr/nip-index
Discussion
I'm just prototyping this kind of notice. I'll add a blurb to the template to direct comments to the issue.