In retrospect perhaps the RG or GM should have PMd unregistered likely voters - I know the Conservatives did, and I'm sure other parties did the same, but that leaves out those without parties and who didn't see both the Sign-In and Turk's warning thread.
After conferring with Foucaulf and others, I posted my warning thread and tried to make it clear that it was the party leader's responsibility to get their people registered, but I discounted the unaffiliated factor.
Again: this is all arbitrary so I can abuse my power to try to please as many people as possible!