@steelpipes post sums up my feelings pretty well.
The co-opting of feminism in terms of "women supporting women," and #bodyposi, whilst at the same time making these exclusive and following a certain aesthetic.
Claiming a body positivity movement from others, but applying it almost exclusively to size 8 -12 bodies and calling one another "brave" for exposing their mainstreamly acceptable flesh undermines the real problems that lie with the representation of female bodies, and can actually exacerbate the issue for many.
The fact that the majority of instamums seem to be in their own exclusive girl gang makes them intimidating rather than welcoming and it does feel very "you can't sit with us." Birthday weekends away where every single woman in the photo is an "influencer" feels very "us and them". Do they not have friends outside of the insta club? Why not? Did they dump them when they became instafamous? I'm a teacher, but not all my friends are teachers, it feels very contrived.
Unfortunately I do feel that I have to mention MOD again, as she is the one that I have experience of shutting down other women. Several of my friends are very experienced independent midwives and doulas who have been blocked by MOD after questioning some of the advice she has given. Why would a professional not want to engage in discussion with and learn from those with twice as much experience as her, I don't understand. And blocking them is an awful way of silencing them.
Lastly, I really cannot buy the whole "this is a new media, we are all learning" excuse. Social media has been around for more than a decade, and on top of that, these people aren't new to being human beings. The same standards of social interaction apply. Whether that's telling the truth about how we acquired goods, looking with discern at opportunities that come our way, being inclusive to others, standing up for others, flaunting our privilege, or using our children for monetary gain. Everyone knows how to navigate these in real life, it's not something of a stretch to apply these to Instagram, surely?