I think the problem with these methods is that they 'work'. The Tizzie Hall routines and the Supernanny naughty corner etc. appear to work in that they create the desired effect in appearing to have a 'settled' child. When in actual fact what you have is a 'controlled' child. I'm not sure that the problem lies in the promoters of these methods not being mothers, but rather that they have chosen to endorse a system without further educating themselves and finding out why it works and whether it's actually producing a desirable outcome.