I didn't vote...because I really didn't understand the three options, and I suspect I wasn't the only one. Were you talking about separate instructors for NPPL, or simply about being paid, or what? Having read the responses, I'm still not voting, because the issues are for more complicated than the poll allows for.
Although having an easier route to instructing for NPPL is a nice idea, it would indeed cause more problems than it would solve. Cessnababe's suggestion is absolutely spot-on. I only ever wanted to instruct (on helicopters), but nearly abandoned the whole idea as I didn't want to jump through the CPL ground school hoops. Now, around two-thirds of the way through an FI course, I wish the time I spent learning about machmeters and jet streams had been spent on something more useful to a new FI(R). So the whole system needs changing. And if I wait long enough, I suppose I might see a flying pig out the window too.