If L&L had wanted a voting system they would surely have created one. Some companies do.
I suggest you read the opening post in the Wish List, written by the developer himself.
Hi, I’m the developer and designer of Scrivener. I’m really grateful for all user suggestions as they have made Scrivener better and better, and enjoy reading users’ ideas. But for the sake of keeping these forums as constructive and manageable as possible, I’d be really grateful if users could follow the basic forum rules laid out below when posting their suggestions. Note: For users in a rush, all the rules can be expressed concisely as follows: For those with a little more time, here’s th…
In it he has a few rules for the Wish List, and among them: “Features are not implemented on a voting system; features are only added if I feel they a) fit in with my over-all vision for Scrivener and b) are practical. (Thus, for instance, please never respond to existing suggestions with “+1”.)”