CSS tricks can get away without it because css-tricks.com tells you what it is up front. You won’t expect to find travel information here.
Still, we’ve got that guy who thought it was a Counter-Strike: Source (abbr.: CSS) forum. And I could understand that a gamer without any clue of webdesign terminology could confuse it for one. Still, when you get to the front page there’s no chance in hell visitors should belive that this page isn’t about cascading style sheets.