One of the posts mentions:

"Most of the Linux distributions make changes as needed to make the terminal emulators send ^? for "backspace", while almost everyone else uses ^H. They should also modify the terminfo entries in ncurses, but not all of the Linux distributions do _that_."

Almost every ncurses program I've seen seems to hack around this by checking for the ncurses definition of KEY_BACKSPACE as well as 0x7f.