I understand that WordPress is a multiuser and free platform. Google apps are also free and multiuser and they support HTML and JavaScript just fine. Facebook also provides easy support fo Google Analytics. I could name dozens more multiuser and free sites that also easily support it e.g. Typepad, Tumblr, LiveJournal, Blogger, Joomla, DNN, etc.. The Google Analytics code requires nothing at the server level and especially nothing that WordPress staff would be the only ones that could implement it.
So, instead of me hosting my site and helping wordpress.com traffic and usage numbers I will be moving my site to another service.
As I said before it doesn't make any technical sense that this is not allowed. The Google Analytics code is about 5 lines of HTML and a link to a javascript file hosted on google servers. This could easily be supported by WordPress.com, they have just chosen not to do so.
It's completely senseless that WordPress.com has not enabled this support in all these years.