pictish, I don't think anyone minds anyone saying they prefer ff to bf - it's the ridiculous posturing it's couched in which smacks of a puerile sour grapes that's not even funny....even judged as a piece of writing it's rubbish. And if you write a blog post like that, it's fair enough to be judged on the quality of the writing.
Bertrand, you'll know I've been around here since dinosaurs roamed the web. I have seen judgy posts about ff - maybe about five to 10 times (ones which call formula 'junk' or who say they can't understand why someone wouldn't even try to bf or who say it's like smoking around your baby or suggest ff is laziness...that sort of thing). Without exception, these posts have been jumped on and criticised - often (IMO) out of all proportion to the offence. Sometimes it's because some women who did not bf, or who did not bf for as long as they wanted to, are hurting and angry about their experience, and for want of a better word, hit out about it. Sometimes the jumping on is because some people like a twatty bun fight.
In real life, I have never heard anyone shout at another woman 'formula is poison!' but on this thread it's happened to one woman three times. Do I think she's lying about it? Not necessarily (though people lie all the time in real life and on internet forums) - but it has to be the yelling of a particularly stupid, or nasty, or mentally ill person, and not really to be taken as a serious indicator of public opinion.
Sometimes, women who ff are embarrassed and disappointed. They don't need to be embarrassed, but it's understandable to be disappointed if they had other plans. That's what leads them to be super sensitive to what they think are 'looks' of disapproval from other people, I think. I do know women who have dreaded bringing out a bottle at an event where (they think) everyone else is breastfeeding, and who say they felt people judged them. I think it's more likely that the same people 'judging' either did not notice, did not care, or were careful not to say anything in case they put their foot in it. The resulting atmosphere is then interpreted as silent disapproval.
When it comes to feeding, a bit more sensitivity all round is welcome - and that doesn't include stupid, unamusing blog posts that sneer at breastfeeding.