The greatest source of my XP is: (Re: poll ideas quest 2014) It starts with the vote fairy and continues with Votebots (or due diligence).

Maybe you can ask Spooty or khayos, both of whom have no posts. Spooty was here 3 weeks ago, so, who knows?

cguevara, whom you pointed out, has the highest ratio. He's also, seemingly, an active user. Why not ask him? :)