Granted there are already quite a few badges for community service on this site, I thought, how about some more!
The theme is merging enthusiast/fanatic with suffrage/vox populi. Something like this (names and numbers open to suggestions)
Enthusiastic Voter - Voted 20 times per day consecutively for 30 days
????? - Voted 30 times per day consecutively for 50 days
Fanatic Vox - Use the maximum number of 40 votes consecutively for 100 days