According to http://data.stackexchange.com/webapps/query/161411/site-activity-and-votegraph the number of question votes in week was incresed almost 4 times. Is this correct?
In taking a closer look, nothing nefarious is going on.
Since it's impossible to know someone's motivations for voting, I am going to err on the conservative side and assume that people are rewarding good posts only on their merit. However, with badges in play, there is always a chance that people will "hunt" them.
Good content should always be recognized and rewarded, and I think we have a strong (but small) corps of users who follow that tenet. More voting is almost always good, but having discerning voters is even better.