Can I confess something? I know that the Wikipedia licence requires (both the old and the new) linking the CC licence every time I quote something from Wikipedia[0], but I only link the Wikipedia article, and never link the CC licence.

So many human workyears poured into licences, and still even the most basic things are total moronic.

edit: actually I have no idea why does the CC licence contain that part? Any ideas?

[0] : "You must give appropriate credit, provide a link to the license," - https://creativecommons.org/licenses/by-sa/4.0/