Even in its original version the question did not seem open-ended to me. Archisman clearly mentioned what he meant by "Easter eggs" in the first revision (emphasis my own):
[...] some Easter Eggs to celebrate the 20-year-anniversary of Ubuntu (including, Warty Brown color, wallpapers, and the old startup sound).
The 8th revision, which is the last in which the text was altered, does not even differ that much from the first. The main change from the first to that revision was the inclusion of the relevant OMG Ubuntu article, which shows where the term "Easter eggs" came from: Ubuntu 24.10 Includes 20th Anniversary Easter Eggs
In my opinion, the first revision was also clear enough, perhaps because I had also read that article before. However, even if someone was not familiar with it and Archisman's question seemed unclear, shouldn't they first just do a simple search like "ubuntu 24.10 easter eggs", which returns the OMG Ubuntu article as its first result, before deciding to close the question?
And regarding the open-endness of the question, it's perfectly close-ended, as it asked very specific questions:
How to install/load these easter eggs in Ubuntu 24.04?
Is there a package I can install from the 24.10 repositories? Is there a shell script to load these?
What I want to say is that we shouldn't be so ready to close a question, especially from a well-known and active contributor that would most likely respond to a request for more details. And also we shouldn't just close questions about topics that we don't know about without even a bit of research first (I know it can happen, I'm saying that as a reminder to myself as well).