Example: MediaWiki:Linter-category-self-closed-tag-desc ; the page is not processing wikilinks or html links from this message to the actual page.
Topic on Help talk:Extension:Linter
You mean you want wikitext be parsed? That should be doable.
Re: links in the UI string, confirmed - bug filed: phab:T177429
Re: intent - is that basically the change you were trying to add? I'm assuming this is related to phab:T162895.
phab:T177429 looks good for future steps. We may want to include localized reference pages (Project:LintCleanup/Tag) etc.