I'm b/feeding my second - I'm a discreet feeder and can still, after all this time, be a bit anxious about feeding in public even though the only times I've ever received comments they've been totally positive.
However I really do get a bit frustrated over the complete dichotomy in British society re BF - 'you MUST do it, but heaven's above, we don't want to ever SEE you do it'. [/clutches pearls]
Why are people so prudish about breastfeeding? Why should people have to strive to be discreet, above all else, when they feed? Why should Joe-Public-random-nobody's sensitivities be the most important thing to consider when a woman nurses her baby - more important than nourishing her baby, and more important than her own comfort? 
Unless you're a new Mum or Dad around other breastfeeding women, you so rarely see women breastfeeding anyway. Given that the preponderance of breastfeeding women full stop is so low, the number of exhibitionist breastfeeding women is an even tinier percentage of that.
Are people's lives really so negatively impacted on by these 'exhibitionist' types? Seriously? We (generic) must encounter them so rarely - that I struggle to believe anyone can genuinely get worked up about them.
Surely an inward eye-roll is all they merit, if you're really that offended by them.