Q:

How To Encourage Continued/Ongoing Voting

Is there a way to encourage a continued/long-term voting?
This is similar to the question How to encourage voting on questions, which subsequently lead to the creation of the Electorate badge. This badge indeed encouraged me to do more voting, so I appreciate this badge and think it was effective.
But for this and all other Moderation badges, I think what is missing are badges that represent (and be an incentive for) continued active level of voting participation. Current badges (not including the 1 vote badges & sportmanship), with total #s awarded are:

Suffrage - Used 30 votes in a day 17.5k (bronze)
Vox Populi - Used the maximum 40 votes in a day 8.7k (bronze)
Civic Duty - Voted 300 or more times 28.6k (silver)
Electorate - Voted on 600 questions and 25% or more of total votes are on questions 4.8k (gold)

Perhaps something like silver and gold versions of Suffrage and/or Vox Populi that represent hitting that badge requirement a certain number of times, similar to the Mortarboard, Epic, and Legendary badge progression.  Or even a version that is for "X number of votes in a week" progression.
Are there any trends that show that after the current badges are attained, that voting levels decline?

A:

People voting because they want to get a badge, rather than because they have an opinion on the quality of a post that they would genuinely like to share with the community, are people that should be voting less, not more.
Adding additional incentives to vote just for the sake of voting will at best do nothing, and at worst result in uninformed votes that result in content with a score that doesn't reflect the communities true value of that content.

