I'm kind of surprised no one has started a service for merchants to warn them of chargeback prone customers (there are people who go straight for the chargeback without even trying for a refund first).
There are plenty of such services. You don't see them because they don't normally operate on the merchant level, they operate on the IPSP / processor / card company level.
The reason why they don't usually operate on the merchant level is because that would allow a merchant to pollute the pool with their 'known good' cards to stop people from buying a product with competitors. You have to wonder when you buy this information as a merchant whether it is clean or not. But when an IPSP / processor or card company uses their aggregate knowledge then it starts to be really useful.
You can do AVR checks and so on all by yourself as a merchant but most if not all reputable IPSPs will have an anti-fraud system in place that does all kinds of checks.
You can learn more at http://precharge.com/guaranteed_chargeback_protection/
Essentially you pay Precharge to qualify the customer and if it passes their fraud checks, they will reimburse or fight the chargeback.
They might be maintaining their own repository of problem customers here: http://www.chargebackfile.com/
Hope this is helpful to anyone considering mitigating chargeback risk.