CBN is degraded THC. Why would we want that? Contrary to popular belief, weed can be over ripe, just like bananas. Everyone has their preference. I know people who refuse to eat bananas which are technically ripe, because they like their bananas on the green side. It's the same with weed. Personally I like my weed on time or even a bit early, compared to late and over ripe. I'm likely a minority here, but I like THC not CBN.