I'll have to agree with @canadianer on this one. Bio SE has a bit of a lower voting and acceptance rate, in the SE ecosystem. – Rover Eye
Why is that the users of Bio do not vote often considering SE has the saying vote early, vote often?
I would like to point out bobthejoe's answer since I don't think much has changed when they posted it in 2012 and now it is 2015.
I think that we should revisit this voting question. At the moment, I think that votes are coming in slowly and infrequently.
I did some superficial digging. I looked at the voting of patterns of top users by reputation since these user tend to answer a lot of question so they spend a bit of time going through more question then say me. What I found was that many of the top users don't vote nearly that much for the amount of time they spend on the site and time they have been a member. Also, in 3+ years only 12 people have acquired the electorate badge. To me, this seems pretty pitiful.
Since not every vote has to be up, vote down if they post is mediocre or garbage. The point is we need more voting especially from the leadership (mods and high rep users) since they are the most prolific on the site. User we look to see what you guys/girls are doing and think that is community. So if the majority of this group is going to be stingy with their votes, I am not surprised new user don't take this stance too. Hell who wants to up vote others when their hard work isn't appreciated?
Do many of you think the questions and answers here are subpar, bad, etc.? If so, help improve them since moderation is by the community--make edits, comments, provide your own answer, but let's get to where people want to up vote since there must be a reason they don't. If formatting and quality and problems isn't the main problem, then what is holding you all back?