The post where I gave the leaderboard results was the last time I've been able to see the leaderboard, danon.
There seems to be quite a bit of upgrading, beta testing going on there with their care2connect project - the leaderboard seems to always get wonky when that happens.
I'll admit I didn't care for the care2connect stuff at first - but I've joined a couple of groups now - and quite like it
There's one group that's all about protest songs - some great collections in there.