if that sounds offensive, just look at the number of reader users - and it got axed. google doesn't aim at tens of thousands, it aims at millions.
I think that is a bit simplistic in terms of why they shut Reader down. Reader was in conflict with their G+ strategy, distracting millions of highly influential people out of G+ and into a cannibalising product and technology (RSS) with no clear G+ integration path. Google wants those people using G+. Even if only 10% of them convert to G+ thats better than 100% of them using Reader and living outside the G+ bubble. I suspect Reader was in the awkward situation of being too small for Google to devote a major product / engineering effort to migrate it's features into the G+ world but too big for them ignore and just leave running as a side project.
I will happily write said script. Google aim's at the thousands but I feel they are in danger of neglecting the fact that people who want features like this make services like this popular i.e the tech community are early adopters and they generally recommend tools (especially tools like this) to their less tech savvy friends. Cater in a small way (you still need your swanky android apps and colors) for the hardcore tech, and you add users.