Great tutorial, but how is this on the front page? This article is 4 years old. str is definitely not a special form, and wasn't, at least as far back as the 2

Great tutorial, but how is this on the front page? This article is 4 years old. str is definitely not a special form, and wasn't, at least as far back as the 20081217 release. The article's date is from May 2008, though, so it's possible, if unlikely, because most special forms are special because they require non-standard evaluation order, and str doesn't qualify.