Should all tropes' Main pages only list fanfic examples if they're original to a fanfic?

Should all tropes' Main pages only list fanfic examples if they're original to a fanfic?

Like how it currently is with Alliterative Name?

https://tvtropes.org/pmwiki/posts.php?discussion=1564420686092266300&page=2#comment-32

Or is that for Alliterative Name only because if its popularity and difficulties with context?

...

Plus, how different must the trope be used to be listed on Main? Maybe using Pinkie Pie's name in Added Alliterative Appeal puts enough of a twist on Alliterative Name?

Any example listed on a work article should be crosswicked with the trope, and vice versa. So if you put a trope on a fan fiction article, it should get crosswicked. That said, one does not automatically list every trope from a parent work on a fic's article. We've hashed that out a few times.

Tropes used by the original work and not notably or interestingly used in the derivative wouldn't get listed there. For things like Alliterative Name, I don't see how the example could be anything other than zero-context and thus in violation of our rules.