People who hit the Elder or Ancient statuses should get a set amount of cubes upon hitting that milestone. Something like 500,000 or lower for Elder and maybe up it a bit for Ancient? Would help show the server's appreciation for the people who have spent a ton of time on the server. Just a suggestion.
Only thing is, a player could have joined Deathrun once for 5 minutes in 2012, then join Surf today and they'd have one part of Ancient, I'm guessing the other is around 50 days /played which could be AFK'able I guess. Not opposed to rewards just wonder what they'd be.
They already gain a cube bonus which is stackable with Platinum and so on (5% / 10% respectively). so they'll see the same games over time fairly quickly if they're playing DR or Surf.
That said though, There is a new membership type coming soon; albeit it'll be for those that have been here for a really long time.