I'm not very sure that I'm allowed to post thees type of things but here we go. When I was just checking the Spiral Knights folders I found some interesting things. I will post just 2 of them for now.
1st) The images for the ranks. There are 3 interesting ones that I didn't see on anybody having them the: imposto, ooo, and suport. http://oi40.tinypic.com/33n97gm.jpg
2nd) Currently there are 2 pvp games Blast Network and Lockdown. But in past there was one namely Superbrawl, wait wasn't that in the beta? Since then many things changed like UI, I found a PVP folder and there are the PVP icons, and interestingly there is a 3rd one the Superbrawl up to date with the new UI. Those this mean that it's in plan of putting it back again ? Don't know the answer.
http://oi41.tinypic.com/20ijvid.jpg
If you guys find funny or interesting things in the SK folders you could post them here if it's allowed to do so.
Those ranks have been in the game (and the developers and Game Masters use them) ever since the mission and prestige system came out.
About the updated icons: http://hexzyle.tumblr.com/post/51129862565/unexplained-unimplementations