Big thanks for the writeup, this was the one part of the Anna saga I was having trouble following.Here's the timeline of Anna's abandonment of the "vegan" label:
Initially, Anna claimed she went vegan after reading "The China Study," then saw all sorts of near-miraculous health effects from her new diet. "The China Study" is a book that enjoyed brief popularity within American Evangelical circles, advancing the notion that diets low in animal protein improve human health and decrease human suffering. Given that she wore leather shoes and handbags the whole time she claimed to be vegan, it was clear that Anna's "veganism" was not motivated by compassion or ethics, but only existed in service to her eating disorder. (At present, Anna claims that "The China Study" is fatally flawed and rejects its premise entirely.)
In a now-deleted video uploaded on 16 January 2018 [summarized here], Anna admitted to ingesting "glandulars" on the advice of fake scam "Doctor" Robert Morse, whom she said told her she "probably wouldn't make it" unless she started using these products. These are preparations of raw, desiccated animal gland tissue that can actually mess up your hormones and have no legitimate medical use. Anna was still explicitly identifying as a raw vegan at this time.
In April 2018, she uploaded a Story [screenshot here] showing herself incorporating a tiny amount of crystallized honey into her evening herbal tisane. Most vegans do not consume honey, although some make an exception out of respect for the role of bee pollination in sustaining a plant based diet. It was not clear if Anna had stopped identifying as vegan, decided to make an exception for honey due to a misplaced belief in a weight control fad diet, or was just an idiot.
In July 2018, she formally updated her manifesto [archived here] to explain why she now embraced a diet including cooked food and animal products. This was when she claimed to be under medical supervision for "catastrophic CF decline," but @multiverse and others noted that the verifiable facts she shared were more consistent with intensive outpatient treatment for an eating disorder.
AugustSeptember 2018, Instagram user @rawveganginger privately expressed her disappointment with Anna via DM, which Anna published in her Stories to prove she was being harassed by vengeful vegans because she questioned their ideology. @rawveganginger responded with a public post to the effect of, "Don't blame the vegan lifestyle for the ill health effects of your underlying eating disorder," which did not mention Anna by name. Still, Anna's weirdly overinvested follower @mike_a710 - a married man in his mid-30s - spewed "positivity" into her comments until she deleted the post. He continued to comment on her other posts in an antagonistic manner until she blocked him.
Anna's abandonment of veganism seems to have been motivated by (1) a desire to convince Mama Ginger (and the actual doctors her mom was forcing her to see) that she ate a varied diet and did not have an eating disorder, (2) the expectation that animal products like bone broth and collagen powder would allow her to function normally and feel okay while still maintaining a very low body weight and (3) a hope that she could duck valid criticism of her dangerous health advice by pretending it was just mindless hate spewed by ideology-blinded vegans toward a brave little #cfwarrior who dared to transgress their orthodoxy. When she thought that abandoning veganism might bamboozle her mother into believing she didn't need eating disorder treatment, the "Fit Vegan Ginger" persona went by the wayside without a backward glance.