My mum had this great book about Australian women and there was a story of a woman who was told not to feed the baby during the night (in the first half of 20th century) and after listening to the baby scream all night decided that she must be hungry to cry for 4 hrs straight and decided to ignore the advice of the experts and feed her at night.
Having shown me that Mum still tried to distract Lucas from crying when she thought he'd 'only just fed' when I'm saying here give him to me & I'll plug him in - invariably he'd whinge until she passed him over and then he was happy.

I think MIL was too scared of offending me to comment - she bottle fed her 2 so she doesn't offer any BF advice.