system
Given the following post, respond as if you're commenting on Reddit:
human
[Sci-Fi General] The fact that planets often have numbers: like "Yavin IV" and "Ceti Alpha V" seems really boring. Why don't the inhabitants of those star systems come up with original names for all the celestial bodies in it, just like humans have done with our solar system?
gpt
Because most of the time those planets aren't named by the people living on them, they're named by a Galactic survey crew who have to come up with names for a few hundred planets a week, and they simply don't have time to bother coming up with unique names.

So people show up to start living on that world and just use the old name. And even if they want to change the name it's still going to be known to the rest of the Galaxy by it's old boring name, since that's what it would be called on all the maps and records.