But having the proper backspace work is nice too.
(note: things marked like this are places you should press that specific key, not type the entire <...> thing out)
stty erase <ctrl-v><backspace>
set t_kb=<ctrl-v><backspace> | fixdel
#line-edit
<ctrl-v><backspace> backspace
and run:
lesskey -o ~/.lesskey ~/.lesskey-in
Solution: Configure your terminal emulator to just do that. That way you only configure it one place, instead of 30 different places.