Advice columns: helpful or more of a harm?

I've joined many parenting pages on fb since the birth of baby G. I think every parent who join such pages want to learn frm other mummies experiences n also post questions if they may hav doubts n see wat other mummies hav to say. But wat makes me cringe is when I read mummies posting questions n mummies who reply them think tt watever they say is rite. 

Case in point: 

When a doctor or pd says one thing... Mummies would often say "don't listen to them as not all of them are rite." (ESP those doctors who aren't pro breast feeding) 

Yes I agree tt some doctors may nt be well learnt in the area of breastfeeding in terms of wat medications are safe or nt but surely they are more educated than us mummies? 

N the way some mummies reply irks me too. Like as if they are dam knowledgable n their advice is like 100% correct u die die should listen to them. 

I came across one question posted by a mummy jus today. Basically in a nutshell her baby is also a preemie n was prescribed iron supplements (like baby G) during the stay at the hospital n upon discharged. She stopped giving the iron supps cuz baby was constipated n fussy. She asked if she should give or is breastmilk enough. 

N I commented saying u should continue cuz preemies needs are veri different frm full term babies. Preemies lack certain nutrition n hence are prescribed certain supps for a reason. K y preemies are prescribed iron supps (at least for the case of baby G) is tt she had apnea episodes (she would stop breathing in her sleep) while she was in nicu cuz of low red blood cells. She had 2 blood transfusions which thankfully helped n iron supps are to make sure her red blood cell count stays at the optimal level whr she won't fall into apnea. Nw she is older n won't fall into apnea as she is stronger n able to produce the appropriate amt of red blood cells but I still give her the extra iron everyday cuz it was prescribed to her n I see no harm in giving her tt. She isn't constipated so I hav jus stuck to it. She's even on vitamins too. 

Thr will be mummies who say "BM is the most nutrious of all! So y worry if ur baby is doing well? Y bother giving such supplements? If u worry u eat more vitamins/iron supps then it will go to ur BM." (N these are mummies who babies are full term wif no knowledge abt the needs n differences of preemies n full term babies). Mind u whatever supplements we breast feeding mummies take onli a small % gets passed through to our milk for our babies. Wat makes u so sure tt tt tiny amt is sufficient for a preemie/any full term baby? 

Wat I'm trying to say is tt every baby n mummy is different. Every baby has different needs. Sometimes these advices may work or may nt. So always take it wif a pinch of salt. Every mummy who post their advices to questions are speaking based on their own experiences wif their baby. But tt doesn't mean they are 100% correct. 

Plus I like to stress tt preemie n full term babies hav different needs!!! Even their bodies develop differently too. 

(Ps hope u mummies do nt take this post the wrong way. But advice giving/advice receiving realli must be Thot through correctly cuz wat u say/listen to can either be helpful or harmful)