Viewing profile — merry-christmas

Hah, isn't it funny how smart people (like most users of this site) are un-willing to see the obvious true (what you just wrote). Nobody likes to be told they don't matter and ever…

Nope, it's not automatic anchoring. It uses JS (iframe AJAX) to retrieve a new page from the server and display it without flicker.

Funny that ASP.NET had the same thing, called Smart Navigation, back in 2003.