Oh yes, there is no way to control how people vote. Never has been and never will, or should, be either. However, you can determine how someone votes by how the feature is marketed. Which would go counter to the slew of posts I've seen recently saying something to the effect of:

Here's how to get you ready to downvote far more often: First, go find a post, then downvote it, then leave a comment explaining why you don't like it.

See the issue here? Instead of saying, downvote crap posts which add no value, it's downvote posts you don't like... Something can be a very articulate and detailed post, but could get downvoted simply because people didn't agree with what was written. Marketing of this new feature is key if it is going to succeed. And so far, the marketing has been very lackluster...