On the go, I sometimes access Wikipedia and other wikis through its bare HTML interface, without multimedia, CSS, or JS, to maximize loading speed and minimize data plan consumption. (Some sites such as Quora and Twitter are useless without JS, but MediaWiki gladly works either way.).
But I have noticed a change at some point: The bracket characters in the revision history and user contributions are no longer part of the HTML, but implemented through CSS :before
and :after
pseudo elements. This means that the brackets are invisible without CSS activated, or when opening the page as HTML-only document.
What is the benefit of it? I am not asking because of it bothering me (it does not), but for curiousity.