I have yet to have any problems with the gnex. The MMS can be weird at times, but I don't know if that is ROM or network related.
The og was a great phone and forum, but I had way more problems. Finicky kernels, SD not recognized, random reboots, etc. In fact I still have problem with it occasionally (son uses it for games and music).
I agree with urge, when every ROM can be your daily, there won't be much going on here. Look at other forums, they're dead too. And when there is discussion is usually a thanks, feature request, whining, or social/off topic.
Let's face it, we have a stable functional phone.