ok I can't believe I'm going to disagree with you all... I hate conflict... but I do see another point of view.
I'm kind of half 'mainstream' and half ap. eg I'm tandem nursing my 16 mo and my 34 mo, I use a sling... but I don't co-sleep and I have 'ferberized' both of them. If you think co-sleeping is the only loving way to raise children, don't read any further, because my whole post is going to make you nuts :-)
First of all can I say I have listened to my dd scream and kick for 20 mins from the other side of a locked bedroom door (actually with wobbly childproof doorknob on the inside). At the time, I was trying to get my son to sleep (he was sick and needed to be patted to sleep.) Of course, the noise of her screaming and kicking made the process much longer - aaggghh! I still remember how overwhelmed I felt that day. Phew! But apart from this instance, I had her with a wobbly door knob ie locked door from 21 months when she went to her big girl bed until 2 and a bit when she started to rebel too much against the closed door per se - then she was old enough to teach to stay in of her own free will. This might be too 'mainstream' for some of you, but I need her to stay in her room during the night and during naptime. My house is just not safe enough for an unsupervised toddler to roam around in. But during most of that time, the locked door served as a barrier, a limit to her space, which she didn't rail against, rather than as bars on a cage, if you understand the difference. When that changed, I removed the 'lock'.
I looked at it like this: when dd was in her crib, she was confined to that space. When she moved to her big girl bed, she was confined to a much larger space. So where's the problem? She still needs to be kept safe at night, ie in her very childproof room. And the firesafe issue - that's only relevant when the child is old enough to act in a logical way in the face of fire - ie running away etc... I don't know what age that is, but it's probably around 3? not sure. Until then, you are going to have to get there yourself anyway to help them. This lady's kid was 18-20 mos - way too young to get himself out of the way of a fire on his own.
Also, re the lady in the op - I wasn't there of course, but I think you might be misinterpreting the 'bragging'. Sometimes bragging is done to try to feel better about something that you're not proud of - maybe she was trying to a) brazen it out, and b) maybe get some support... maybe she was hoping that someone else would say 'oh I've so been there honey'...
It's very hard to truly understand a parent-child relationship from the outside, just like it's hard to understand a marriage from the outside.
So - hope I haven't offended anyone here - would welcome more discussion!