Considering the G been the site's logo since it started - http://public.gamedev.net/images/about/gdnetv1big.jpg - changing is kind of like asking McDonalds to change their iconic golden arches.
Also, I don't see how a logo can "declined[sic] the feeling of gamedev to a lower status" at all.
Oh man, I've been visiting here since ????, and not once did I EVER notice that big "G". It looks like it was ray-traced with fancy (at the time) reflection and everything! (Povray?) Not sure why but I kind of miss that old site layout.
The current stands out quite nicely, though, I like it.