Twitter now included in Nielson's TV Rating System

This seems like a great idea and horrid execution. Why not simply count users watching Hulu, Netflix, and other legitimate streaming sources? I'm certain these sites already keep logs of how many people are watching which show so it should be a simple process to buy that information (or make it conditional to them streaming your show) then simply include it with regular cable viewers. You're not getting money from people watching it illegally so those don't count.

This is just asking for abuse from spam bots and such.