The use of any domain is problematic as there is no guarantee for these links to work ten years from now or ... tomorrow.
If Snort works fine without being logged in, why not default to snort?
I'm conflicted about what to share to get people join nostr. "Follow me on nostr: npub..." ... people have no idea what to do with that. Sharing my profile link on one of the clients is "wrong" but more accessible. Those who know, know how to find me on their preferred client. The noobs though get a reasonably decent experience. njump is just an indirection.