This article doesnt amuse me at all...I have examples of my own cousins back in hometown who breast fed upto age 4 .... the mom grew so pale infact ...
as i got two kids year after another couldnt work it out beyond 7 months for the older one (risking miscarriage) and 12 months for the younger one ...
But i would rather suggest a max of 18 months would be fine and not more than that absolutely ...