I was just chatting about this elsewhere, and for me what it comes down to is this:
Anything that takes pressure off people and makes it easier for them to nose around makes it more likely that they will check a place out and maybe even play. I think this is a great idea for new, curious people checking a place out, who maybe don’t know anything about this style of play, or how easy it is to change a name.
I’ve run into some of the concerns you mention around IPs for guests, etc., as a game-runner, so I’m glad to see an idea to tackle it from that side too.
Personally, I like the random combination of adjectives and nouns. I couldn’t tell you why, but I don’t love the numbering. This is 100% vibe and not logic-based.