One of the early assignments for an introduction to scientific computing course I teach has a Rickroll link -- I added it as a light-hearted way to see who's actually working through the materials in a detailed way.
I love all the little Easter eggs that make their way into academic papers. 42 is now firmly entrenched of course as the “default number“ in virtually all examples. And paper that I have under review, I tried sneaking in a few references to Zork.
I do remember that there were Rick Astley videos uploaded to YouTube under throwaway accounts for years before Rick Astley started uploading his own videos to YouTube.
https://www.npr.org/sections/thetwo-way/2011/04/13/135385998...