@eCinS Then even more people would complain, saying it's complicated and their brain hurts.
Not everyone wants to see chapter comments. Also, putting them there will outright murder the database.
On mobile, this menu is at the top and has no empty space. Sure, devs could add some functionality only for desktop users, but then they'll have to cut it from mobile version or vice versa. This is a huge maintenance headache, which was one of the main reasons why the legacy reader got killed in the first place.
etc-etc.