I'm sure that this, just like anything else in raising your children, is a very personal decision. To me, "Ferberizing" is just a catchy marketing term to something that was common sense to me. In fact, I only recently learned that it had a "name", LOL
I do not, however, agree that children need to be put to bed awake and screaming in order to learn to "self soothe". The children in my family, in addition to my own child have ALWAYS either been nursed or given a bottle before bed. This makes an immense amount of sense to me; I always sleep better on a full stomach.
These children have NEVER had issues going to sleep on their own, even if wide awake after their bottle or after nursing. Of course, they're going to be more content if their diapers are clean and their tummies are full.
I do follow a nightly routine of bath, nursing and bottle then rocking, then prayers and kisses on the forehead. Most times anymore, my baby is wide awake after the routine, at which point, I simply place her in her crib and walk out of the room. She never cries; instead she'll play until she falls asleep.
One of the drawbacks (if it is a drawback) to this, however, is that she doesn't cry or make noise when she wakes up either, so we have to keep checking on her. She's been known to play for an hour in her crib in the mornings while we sleep in the next room without even a peep over the baby monitor. Again, some may see this as a positive, but I always worry about what she might be getting into. ;)
If she fusses in her crip while awake, we do not pick her up - rather, we wait until she stops fussing to walk in and collect her. This is not fair, however, if there is a possibility that one of her basic needs hasn't been met (ie: a messed diaper or hungry), so yes, we do go in and pick her up if she's crying because of an issue.
Again, this was just something that came along as common sense to me, and what worked for us, and I feel that others need to do what works with them, rather than relying on one Dr's opinion of what worked for him. Every baby is different.