Sorry, this may be long.
First, as someone who also mix fed, I also felt better bfing than ffing in public, but that's about me I think!
I also have breast hyperplasia. With DD I thought feeding was going fine until her weight gain started bothering people. She got back to birth weight at around five weeks and was very slow. My HV diagnosed PTT, and it was the rather unsympathetic lactation consultant at Kings TT clinic who told me I had tuberous breasts and 'wouldn't be able to breastfeed'. Added to that, my HV told me I was starving my baby, so I ended up mix feeding, with largish formula top ups. I live in an area with fantastic support (although sadly my otherwise amazing midwives had never even heard of the condition) with a choice of bf cafes every day, and I saw three very supportive LCs. I also took fenugreek, goat's rue, domperidone, and did endless heartbreaking pumping when I'd get 20ml at most over the course of a day. I felt absolutely dreadful about my 'failure' and in fact have never since been able to think of my breasts as 'proper breasts', even sexually. I can't wear nice underwear without feeling like a fraud.
Reading so many accounts on here really does help. Whoever asked why that would be because so many women ff, it's because lots of them are perfectly happy about that and never wanted to bf. It's different to know about other women who passionately WANTED to and couldn't.
Anyway, I'm now a mother of two and my DS is 11 weeks old, bf with top ups of donor milk from Human Milk 4 Human Babies (a resource worth knowing about), and also still feeding DD, now 2, once a day. I also still cry about my condition about once a day!
I'm also about to start training as a peer supporter. One thing that two LCs have told me is how often women with hyperplasia now have breast surgery, because alongside low supply they can also look rather odd, and therefore present at first sight as 'normal' breasts. It's always worth gently asking, if you know there's been surgery, exactly why the operation was done.
Sorry to rattle on. A subject close to my heart. But just to add, while I wholeheartedly believe in bfing, that is my personal drive. I think comments about it being best for the health of babies is best kept out of online support. It can make women feel beyond dreadful.