User:Vtvt1/sandbox/Comment transclusion test

To get the page title of a comment, right click on its date and select "Copy Link Location".

You will get something like this

https://virtualyoutuber.fandom.com/wiki/Talk:Oga_Saki/@comment-45300650-20200608062316/@comment-45300650-20200620054910?permalink=8078#comm-8078

You can transclude it just like any other wiki page.