miss-leading help in configuration options

I was configuring a kernel build and stumbled across some options, which default to [n], but the help says "If unsure, say Y".
Also the other way round defaulting to [y],
but the help saying "If unsure, say N".

So now I am really unsure, what to pick.
Here is a list of options, which I found with a script to have such unsure help:

./arch/blackfin/Kconfig.debug
config DEBUG_DOUBLEFAULT

./arch/sh/mm/Kconfig
config SCHED_MC

./arch/sparc/Kconfig
config SCHED_SMT
config SERIAL_CONSOLE

./arch/x86/Kconfig.cpu
config CPU_SUP_AMD
config CPU_SUP_CENTAUR
config CPU_SUP_CYRIX_32
config CPU_SUP_INTEL
config CPU_SUP_TRANSMETA_32
config CPU_SUP_UMC_32

./drivers/input/touchscreen/Kconfig
config TOUCHSCREEN_DA9034
config TOUCHSCREEN_USB_EASYTOUCH

./drivers/net/ethernet/stmicro/stmmac/Kconfig
config STMMAC_PLATFORM

./fs/ext3/Kconfig
config EXT3_FS_XATTR

./fs/ext4/Kconfig
config EXT4_FS_XATTR

./fs/notify/fanotify/Kconfig
config FANOTIFY

./lib/Kconfig.debug
config RCU_CPU_STALL_VERBOSE

./mm/Kconfig
config CLEANCACHE
config FRONTSWAP

./net/ipv4/Kconfig
config INET_UDP_DIAG

./net/Kconfig
config BRIDGE_NETFILTER

./net/unix/Kconfig
config UNIX_DIAG