In short, many tibians are considering about buying chars with bestiaries on Bazaar and rooking the poor ones back to Dawnport, this way they might start the new 5th vocation with juicy bestiary points as a fresh start.
However, I wonder if a rooked char keeps all the runes previously opened or if the char gets their full points back once rooked and can open runes as they wish. I know that people keep charm points, but I can't find information about how the runes are dealt with after the last bestiary update in Tibia.
Related question: What will I lose if I rook my character? - TibiaQA