Well they are very slowly improving Fab like wishlist and better category/filter and they finally realise they need to do something about AI (which we said from the very beginning to limit the amount of publishing item per day) Link Announcement
I think the fab team itself is the issue, just a few example where a decent amount of people cannot make purchase and Fab team just gave up on trying to investigate the issue about the payment system.
Source 1: Unable to purchase on fab - #25 by Bug-Reporter
Source 2: Fab Purchasing issues, "Looks like something went wrong. For your protection, this transaction has been declined. Please try another card or other payment methods."
I don’t even know how to help them, there actual people who need to finish their ongoing projects and Fab doesnt even bother to give a reply to them. Any other store would have given priority to any issue related to payment system.
*if anyone can vote that latest ongoing post also that would be helpful(hopefully)