These copper thieves are almost always hardcore drug addicts. The “inequality” explanation is incorrect. A failure to recognize that has grave consequences for everyone.
I dealt with millions of dollars in chargebacks with Stripe. We sold tickets, they're easy to re-sell and our customers were tourists visiting shows from all over the world.
Stripe Radar was not a good product. It would score large numbers of very suspect transactions at a risk level of 1 or 2 (out of 100). I don't have an ML background, but something about their methodology was just flawed. It behaved as if there was a wire loose in it. Unfortunately, I don't think they're very incentivized to care.
You can get the seats into "baskets" (reserved) in minutes. In my experience they will not sell out for some time as they usually keep dropping back into inventory. "Sold Out" is a matter of opinion. There are usually lots of single seats left sometimes for weeks or months. The promoter decides when to label the event as "sold out".
Having built a ticketing system that sold some Oasis level concerts there's a few misconceptions here:
Selling an event out takes a long time to do frequently because tickets are VERY frequently not purchased--they're just reserved and then they fall back into open seating. This is done by true fans, but also frequently by bots run by professional brokers or amateur resellers. And Cloudflare and every other state of the art bot detection platform doesn't detect them. Hell, some of the bots are built on Cloudflare workers themselves in my experience...
So whatever velocity you achieve in the lab--in the real world you'll do a fraction of it when it comes to actual purchases. That depends upon the event really. Events that fly under the radar may get you a higher actual conversion rate.
Also, an act like Oasis is going to have a lot of reserved seating. Running through algorithms to find contiguous seats is going to be tougher than this example and it's difficult to parallelize if you're truly giving the next person in the queue the actual best seats remaining.
There are many other business rules that accrue after years of features to win Oasis like business unfortunately that will result in more DB calls and add contention.