@Kwo, thats great. It would be a shame to see PODBots die anyway. I am glad there are many offsprings (like you have EPodBot as well).
Perhaps the question active/not active and be done by concluding activity by the latest post made on the website. It is simple and efficient. Perhaps we need to think about a frequency of posts, else you could just sometimes post a message and you are suddendly 'alive' while in fact you just posted a message "happy new year" after 2 years of inactivity