moondog - thatnks for your support but you are not looking at it the same way as me! I think there should be a special case for feeding issues - mothers who do not breastfeed for whatever reason probably are more likely to feel 'got at' when seeing a poster romanticising breastfeeding, more than they are when they see something urging them to buy some commercialised tat.
Expectantmum - I understand from what you are saying that the research you read appeared heavily weighted towards breastfeeding, and this affected your feelings so you felt under pressure? I am not sure why this should be objectionable. Of course the formula manufacturers directed you to a breastfeeding statement about the superiority of breastmilk. This is the law, in order to protect infant health from commercial pressures. Any information on infant feeding should tell you that the decision on breast or formula has health implications for you and your baby. If it doesn't, it isn't doing its job as information.
If you research anything else with health implications, you would expect to see this.
Let's take toddler diets. You research this, and you find that it's good to limit the amount of sugar in your child's diet for the sake of his teeth. You also see a poster in your dentist's advising a range of healthy, teeth-friendly foods with a big red cross through the picture of chocolate and sweets. Do you say you feel you can't make a choice to give your child the occasional sweetie or choc bar, and demand your dentist take the poster down because it makes you feel bad?
No, you don't. I do think it is different for breast or formula because of the emotional content of the decision, and therefore posters and slogans should be carefully selected, but I do not think anyone has a leg to stand on when they complain the information they read, when they are deliberately researching the topic, tells them formula has risks...if you don't want to be informed, then don't seek out the information!