Nice list. I believe dividing the hacks into groups (eg terminals, screensavers&fonts&layout modifications, music&audio, manga, full alternative reading environments etc) would make it even more useful.
I did not look thoroughly through the list but I think the following hacks might be missing:
https://www.mobileread.com/forums/sho...d.php?t=122000
https://www.mobileread.com/forums/sho...d.php?t=126023
https://www.mobileread.com/forums/sho...d.php?t=121008
https://www.mobileread.com/forums/sho...d.php?t=119969