[bscphil]

> The exact guideline is "If the title includes the name of the site, please take it out, because the site name will be displayed after the link", and I think that wording speaks from an outdated mindset where every submission is a standalone web page that _has_ a title, for one thing.

I suspect the original intent of the rule was to get rid of pointless redundancy in the title. "The 10 craziest things you don't know about X - clickbait.com" is the sort of thing you see very often in the <title> element, but it adds no new information. Actually, you'll notice even Hacker News posts have " | Hacker News" appended to them.

In an article about Arch Linux, the text "Arch Linux" is much less likely to be redundant than an article about something else that just happens to be on the archlinux.org domain.