One of the things I often do is help proofread a MediaWiki with hundreds of pages. In wiki text a link will often use a pipe to separate words and terms in a link. Unfortunately, Opera GX simply reads the entire string including the pipe as a single word, creating considerable added work.
For example, to make a text string link to a page you would type [[Page title|page]], and "title|page" is parsed as one entire word.
Given how prevalent wikis are, this would greatly improve the user experience for editors.