Since it’s been a while, just registering my interest in this feature! I reread a ton and I would love to be able to see which books I reread most/how many times without having to search for each book I can remember rereading and comparing manually. It would be really nice to have a simplified version in the Stats section as well, in the format of a “books reread” during a time period stat.

One option in the meantime is to "roll your own" by downloading your TSG data and sorting the csv, as in the attached screenshot. I'm doing this to find the stats I'm looking for on my DNFs.