Yes, but it would cut down on the magnitude of promoted views. As it is now it's free. A motivated party can easily generate a seemingly honest and true and good faith crowd of thousands with some code and a bit of creativity. With verified accounts (again, it's nearly impossible to implement at this point) it would take a lot of money to get those thousand actual people.

IMHO getting rid of free twitter bots would be a good first step. And yes, I know lots of them do good. But does it balance out? Likely not. Maybe tie them to registered accts? There must be some way to clean house. And, no house is 100% clean, but 80% is better than 5%.