I'm mostly one of those people, but there are campaigns where I will consider an early-game noCB war.I'm one of those rare folk who always uses a CB; losing stability, gaining war exhaustion, and gaining needless AE (even if it's only on a part of the world no one cares about, and no one even cares about the people who care about it, it's still completely unnecessary) just doesn't seem worth it to me.
One of those campaigns is - you might be surprised to hear - the Ottomans, where it can make sense to noCB Granada (and force-vassalize them in the peace deal) early in the campaign.