Imagine that being applied to AG3 - if they can't change something as simple as a time stamp without causing more problems then I fear what would happen if they added some of the things mentioned in the stickied threads.
This is likely due to the site's internal mechanics. It's ill equipped to handle what the admins wish to add to the site, and anything that does get added goes bonkers. This is evident throughout AG2's lifespan. This is also why AG3 has so much "revolutionary" material added. It's made completely from scratch instead of built from a template, so the administrators won't be obstructed when coding various features.
Of course AG3 will be exponentially better than AG2, but this doesn't mean a thing if the traffic doesn't show for it. Matrix already touched on the community staff participation, but most of this is also due to the community members. Three dozen people can't be hundreds or thousands. More people need to be there to reply and start threads to stimulate more traffic. They just need some initial pushes from staff members (moderators, administration) to participate along with the regular members and have a good time.
The site also entered its ten-millionth comment and nearing its ten-millionth "thread". Cheers!