It seems that quite a few people don't quite understand the full purpose of the definition phase and the example questions. The FAQ states
The goal is to come up with at least 40 questions that embody the topic's scope.
which to easily can be taken that the whole goal is to achieve 40 questions with a score of 10. With that any vote that brings the score above 10 is a "wasted" vote.
From reading between the lines, looking around the StackExchange sites, poking around proposals in various stages, and a lot of pondering I think I kind of have an idea. But still I'd have a hard time to convey how these questions define the new site and add value to the proposal process.