What houseconfusion says. There's a world of difference between saying
'this is what I do, it works for me, but you do whatever you choose' and saying
'This is what I do, you do whatever you want but evidence shows my way is right
Many of us have been around long enough to know that 'evidence' for many things relating to bringing up children is often conflicting, or that one parental trend will be discredited a few years down the line.
Other than where there is really hard unequivocal evidence about some aspect of child rearing (eg putting babies to sleep on their backs, not smoking etc) there is an entire spectrum of ways to raise happy, well adjusted young people, who will become happy well adjusted adults. Isn't that what we're all aiming for? 
Overall i don't think this thread has been particularly judgemental... People are voicing their own experiences, and so long as they aren't extrapolating from that that they are 'right', then what's the problem.
Like I said earlier - I was sole carer for my first born for just 12 weeks, after which she was looked after by a cm when dh and I were at work. My other 2 children spent considerably longer at home with me. You wouldn't be able to tell who spent longer with me if you met them now. More importantly- they didn't know until I told them!
So- mums of 3/6/12/ whatever months old- do what YOU want because it is the right thing for YOUR family. Don't feel pressured into feeling there is only one 'right' way- there are many.