The situation, from Jack’s POV, is still eminently salvageable, if only she’d take responsibility. Some of the issues actually aren’t up for debate.
as per the drama triangle above, her ostensible supporters are actually dragging her down by giving her the misleading impression that she has no need to address any criticism.
Here’s what she should do, in order to salvage her career.
1: acknowledge erratic behaviour, and explain & contextualise it. Whether it be poor mental health, issues around alcohol/drugs or getting sucked into the cycle of chaotic arguments - acknowledge and take reponsibility
2: Address Patreon head on, fronting up to that not only is it likely to be impossible to fulfil missed rewards, but also acknowledging that the nature of the rewards means that patrons are unlikely to actually want to bankrupt her to get a shitload of postcards. Throw herself on the mercy of subscribers, being as honest as possible. Assuming worst case scenario, say “I’ve let you down, and haven’t provided what I’ve promised. There are reasons, but not excuses. Your contributions have given me a much needed safety net, and I appreciate it immensely. I’ve been avoiding this because it’s too stressful, but the truth is, I can’t afford to pay everyone back everything right now. If you want a refund, contact me and while I can’t refund everyone straight away, I will be refunding patreons from the income left over after bills are paid and essentials are bought. I won’t be buying luxuries or holidays until I’ve paid everyone that requests a refund.
i know some of you have signed up for patreon specifically to support me to be able to do other work - if you’re happy with what you’ve got for your money, then please let me know. I will keep track of everyone who wants a refund and I will make this right
3: draw a line between private and professional life. go back on Twitter, but note that this is a professional account and won’t be for personal posting - just stuff that’s useful. Call off the flying monkeys, and have a locked Twitter account for personal stuff.
if she did that, I guarantee that most of her patreons would actually waive their refund, and she will feel better for having come clean.