cookies were once delicious delicacies - https://bugzilla.mozilla.org/show_bug.cgi?id=213186
Telling your users about what web technologies are and what certain settings mean is also cool.
Wanting to be helpful to a wider audience rather than have a funny easter egg for tech nerds feels like an okay thing to do, once a project is past a certain stage and aims for larger adoption.
That said, seeing "18 years ago" for the message dates in the discussion feels sobering.
(I'll go back into my bubble now.)