Hey, former Shortbox participant here. I originally didn't really plan to reply to this message, but I kept thinking about it and it frustrates me deeply.
I'm sincerely sorry that your experience was so unpleasant. However, the hyperbolic way you're describing Zainab's behaviour and work ethic feel very misleading.
Shortbox Comic's Fair is indeed a one-person led project. I will point out that she isn't getting paid for it either. She does not take any share of the profits generated by the fair - the only percentage that's taken off goes to the website hosting fee. The entire rest of the money goes to the comic artists. Comparing her to a giant like Steam feels incomprehensible, she is not a mega corporation?? If you go and table at a comics convention, you have to pay a fee for your table - it isn't even the case here. You no longer have to pay as you enter the fair. And we as artists get a lot more monetary profit and visibility that she ever does.
The rules of the fair are simple and pretty clear. The comic you're presenting has to be a complete story. It is very clearly stated ahead of applying, once you've gotten in, and throughout the fair. If she did not tell you she agreed to amending them for you, then it feels very unsurprising that failling to follow them would mean not being able to participate.
She is one person, having to deal with 150+ different people. She has to keep things clear, succinct and organised. She cannot amend rules for each person participating, and I don't know if you realise how complicated it would be to follow up with each buyer for additional content. The minimum amount of pages asked (16) is an accessible one. If you were not able to finish your story in time, then it is on your ability to manage your expectations for what you produced, not on her. It does not mean you didn't work hard, I know how it is to want to show the best of what you can do for such an exciting event. It just means you have to have a clearer understanding of what is doable to make in the time you have to make it.
The rules of having to present a finished story goes towards a very simple goal, that is coherent with the rest of the Fair's ethic. Having a professional event, where you can find quality one-shot comics. In that spirit, it is not tone policing to ask of the participants not to disparage their own work?? It feels very young and unprofessional to be flippant and dismissive about the work you're making for an event that is all about loving comics. The instance I know of when this happened and Zainab had to send a reminder to people not to behave this way, the message was firm. It was not scolding. We aren't children. It isn't abuse to expect people to respect themselves and other people's work. From my experience, she's never policed how we talk about the fair either.
In all the emails I've exchanged with her during my two participations, she was to the point. She was never aggressive or unpleasant, I believe she simply has so fucking much to deal with, I do not blame her for being succinct while answering emails and queries from 150 people for months at a time.
She puts countless hours of work in making the Fair possible, and she's very upfront that she's doing it at a loss. She's always been accomodating within the rules stated, and was prompt to reply anytime there was a technical issue. In my eyes she was very patient as I, for example, sent her three consecutive emails, having changed the English title of my comic last minute when she'd already been putting things online.
I haven't been online enough or participated recently enough to know about her claiming she's being plagiarized by competitors so I can't answer to that.
It just feels very misleading to me to tell people that Shortbox is secretly an abusive environment to make comics in. It's a passion project. She isn't an all powerful abusive tyrant, she is someone who created an event that grew in popularity and became this big thanks to her work ethic.
All the people I know who participated had a fun time, for me it was a great opportunity to finish a comic and have it be seen and read by many more people that I would have reached otherwise.
Even friends who got in but didn't finish in time weren't critical of the event. Sometimes our eyes are bigger than our stomach and we expect too much of ourselves, and it's disappointing to not be able to complete something.
I'm glad you were able to share your comic later on, and hope that you keep enjoying making them.