Specific circumstances as in, what's in the paragraphs above.
The exceptions are (1) if the title includes the name of the site or (2) if the title begins with a number. Neither apply here.
The exceptions are (1) if the title includes the name of the site or (2) if the title begins with a number. Neither apply here.
I believe they phrased it this way so some discretion can be exercised if the original title doesn't give the full context. Another example is the recent Tesla story - original title is "Q3 2019 Update", story title is "Tesla Q3 Financial Results". The HN story for when MS bought GitHub is "Microsoft acquires GitHub", while original title was "Microsoft + GitHub = Empowering Developers".
If there wasn't such a leeway, most acquisition stories would be titled "Our incredible journey".