NurseyJo, it's a shame you were upset but you were very dogmatic, and your assertions went far beyond 'what you have been told', into angry-sounding defensiveness that as a professional you knew for sure that what you were saying was correct.
I quote:
"You can think what you like, but i am a professional and do know what I am talking about.
The antibodies in breastmilk reduce over time and are not as beneficial beyond 12 months. THAt is fact.
Formula is not as effective for babies over 12 months of age, the same is true of breastmilk and has been proven as much. They then need cowsmilk and a balanced solid diet."
I replied reasonably carefully and politely, and explained why this was wrong.
You then came back and explained your experience (in CAPs , too, which is shouting!) and added,
"I am therefore fortunate enough to receive up-to-date advice and information as and when the DH release it."
AND
"the department of health have actually stated categorically that breastfeeding is of 'little nutritional benefit' of babies beyond 12 months of age."
I for one challenged both those statements, probably slightly less politely, but I was not personally unpleasant to you.
You still haven't said 'Whoops, I got it wrong'. Instead, you have made concerted attempts to garner sympathy because of feeling hurt at the responses you got.
As I said way down list, if you state erroneous and misleading info as 'fact', if you then go on to defend these 'facts' by making even more preposterous statements, and say because you are a professional you know what you are talking about, and continue to get it wrong, but dogmatically, then people are going to get annoyed with you.
You may be a great maternity nurse and a super support to the mums you help, but you have a professional duty to ensure what you say to them about feeding and weaning is correct. Otherwise your clients will hear the correct stuff elsewhere and wonder if you know what you are talking about. Conflicting advice is a source of confusion to many new mothers, and in fact, you should be grateful to mumsnet for trying to put you right!