|Miraheze wiki URL:
Following a discussion on Discord, I would like to add https://www.mediawiki.org/wiki/Extension:RemoveRedlinks to Special:ManageWiki. Fandom had done something similar for SEO reasons once, and it appeared to benefit them (see User:Collei/Improving a wiki's SEO for evidence of this). I also believe that others may find this useful in general.
Please consider implementing this extension. Thank you!