A few weeks ago I messaged a lot of friends so as to get in the top 10. It's a lot easier than you think, something like only 20-30 votes needed usually and that's as little as 7-10 friends.
There has not been a new CI there since something like 15 weeks after the damn thing ws invented. They actually ran out of items at about week 5 then a few weeks later added 5 or 10 more things. I don't have my notes with me right now, but that 'ended' for us just about back in June.
I do go for at least one vote every week it's worth it, a no vote is worthless.