1400 users, not 1% of them voted for the episodes. 11 for the first one is less than a percent.
I think there needs to be a new icon for every episode entry - maybe next to the "Action" icon, or to the left next to the episode number.
This way or the other, to make the episode voting option anywhere useful in the near future, there should be a more visible indicator that you can vote for single episodes than accidentilly stumbling over hit when you visit the Anime's vote graph - or, and that's even less likely, the episode's property page.
At the moment I think a lot of people don't know they can vote on episodes and therefor don't vote. If nobody votes at all while the feature is presented prominently, then I'd suggest the Episode voting option to be purged. It's not like I really need that feature, but as long as it is there it should be either used or removed.
I think AniDB has gotten so many new features in the past year one almost forgot the lack of implementation of generic files *wink*