[voz_]

This is a huge issue with Wikipedia. The “importance” bar is silly when a page is basically free to host. Yet, despite this, they often remove or delete articles because they do not deem it worthy of an encyclopedia. I never understood this - it’s not a physical tome. If the knowledge is well sourced who cares what it’s about?

[mikepurvis]

Notability is one piece of the puzzle, but the other is ensuring that Wikipedia content is not written "in-universe". Fandom has no such restriction, and in fact skews the other way, with content being assumed to be referring to fictional people, places, and events as if real, unless otherwise noted.

I think this is a valid barrier for Wikipedia, and the desire to describe fictional worlds this way is a good signal that that content is a better fit for a more fan-oriented forum.

[thefringthing]

The bar for notability also somehow ended up a lot lower for the kinds of things that appeal mostly to the Wikipedia editor demographic, although there has been some improvement on that front in recent years.