Most people on here have missed the point entirely.
Language is really important. Breastfeeding is really important.
The U.K. has atrocious bf rates. We live in a formula feeding society. Fact. What is biologically normal is no longer seen by the majority of the population until they have their own kids.
HCPs are part of the problem and part of the cure. They have to do their bit and watching their language is part of it. Particularly GPs as they are seen as educated and should be looked up to. The fact most of them never have more than a couple of hours in infant feeding over their entire careers is of course a huge issue for families.
Calling a baby "skinny" is pejorative and quite frankly unprofessional - at least not until the GP had checked the red book, weighed the baby and had a much more friendly chat with the mum. Opening the conversation name calling is just silly!!! The dr is in a customer service profession and should know better than that.
If a first time mum was struggling with bf, had a baby who had struggled to get back to birth weight and although now back tracking their line, that mother lacked confidence, was already anxious, lacked a support network and had gone to that appointment with her 10wo it could have been the straw that broke the camel's back. That mother may well have gone home, cried herself into a pit of despair and given up bf over the next few days and weeks.
There is so little support for bf in the community that this is a story many bf peer supporters have heard from mums when they have their 2nd child.
So don't knock the OP. She has a point. Yes a complaint is OTT but feeding back so that the GP (& the practice as a whole) can reflect on their place in the system and how they can improve their service, can only be a good thing for the mothers that follow.
Mums do need to help each other so feedback ladies. Feedback. Let's improve the system for our friends, sisters and daughters.