@thor There is https://podupti.me It currently tracks only diaspora protocol servers. It provides age, uptime, user count and other useful information. Users can rate servers. There's also a wizard to choose a pod automagically. It's not like Rottentomatoes, thankfully:) The idea to provide registration "load balancing" (for those who don't want to choose manually) is great. It could promote small (stable, updating) servers instead of large ones: https://mastodon.social/@Gargron/99961967064684289