Krill Leaderboard sounds like a great idea, might however be better to launch something like most hands played above a particular stake . Krillweeks will mostly be won by the high rollers as they earn more krill every hand. Some kind of promotion for the people playing lower stakes would be great as well.
Yeah, the Krill Leaderboard is great and provides an extra incentive and reward for putting in the volume to start and keep games running.
I also agree with you about adding something for people playing lower stakes. I've posted various ideas for those earlier in the thread.
I do believe they are planning on adding some promos like that though. The current Krill Leaderboard is just the first step so far. More cool stuff coming.
One idea I liked from another site was counting hands that a particular player plays over a week, and then qualifying or giving him an entry into a tournament with a GTD prize pool maybe at the end of the week. But since this can be taken advantage of by playing many hands at 0.01/0.02, maybe you could set a limit of stakes like over 0.05/0.1 or something.