Following a discussion in chat, I want to propose that biographies of rabbis should be in scope for Mi Yodeya. This proposal is triggered by recent closures of questions asking for biographies of R Hirsch and Ibn Ezra/Rashbam.
Technically I see from the FAQ that
The history of individual Jews, Jewish populations, or the Jewish State, unless also about Judaism, is off-topic
I believe that biographies of rabbis are also relevant to Judaism. These books very often/nearly always (at least in the ca. 20 I have read) include significant portions describing the rabbis written works, positions on important Jewish issues, responsa, etc. Rabbis, certainly in the case of the Rishonim, have helped shape Judaism as it is practiced today, and understanding their lives and work in more detail certainly helps understand Judaism.
In addition, as @b a wrote "For better or for worse, the lives of famous Jews is part of the practice of Judaism for many people".
I welcome comments on this proposal.