I just checked my rumble client cache, surprisingly it is exactly one year old. None of the robots in question are present in the cache. Though someone updated their rating on 2014-08-31, that someone must have their copies. It looks like MN was submitting around that time, may be his/her cache is older than mine and has copies of the bots.
I also cannot locate the divineomega_PatrollerBot_1.0.jar rumble rating at all.
May be we need a peer enabled rumble server, so it has all the copies of robots which ratings are submitted and can push it back to clients.
divineomega_PatrollerBot_1.0 is available but had invalid name - i fixed this. And I'm going to remove ArchimedesAlpha_1.0 and MyFirstRobot_1.0 - rollback my changes, if someone against this