if were going with the "money where the mouth is" model of thinking, you can think of it like this; keph is poor so he doesn't have anything to put where his mouth is
wait, so this dude keph came out here talking shit at rock and taking cheap shots, and hes just speaking his mind? and because rock is not only a better writer, but a bigger man for not wasting his time shit talking, hes a pussy... ok bud, stay dum.