Not me, I find version numbers more intuitive. These random names add confusion to Linux distros, medical terms, insurance fine print, and legal-speak! 
Then you're obviously in the minority. Think about IKEA, their whole product line is identified by names and not product numbers. Humans can memorize names much better and since Debian releases just about every 2-3 years, it should be easy to remember that the current version is Wheezy.
IIRC, Debian 6 was the last release that supported the Gnome2 desktop. I like Gnome 2.
Well, yes, but Gnome 2 is no longer in development, so there is that. And, again, you shouldn't be using software which is no longer maintained besides for classic computing.
You can jump to Mate which is a fork of Gnome 2 with some improvements. I have been using Mate for some time and I have reviewed and sponsored some Mate packages, but I am currently on Gnome 3 Classic which resembles the old Gnome 2 very closely.
Adrian