[woodcut]

Unsure as to why you're being downvoted... as chargeback insurance is the predominant model used by anti-fraud companies. That said, it's not necessary for Stripe to take their cut that way as they already are the payment service provider and so already have taken a cut and their model allows them to just offload risk to the client.

[maratc]

If they limit themselves to be "payment service provider" it's not clear how this anti-fraud stuff really fits into their model.

[rwmurrayVT]

Ending the bleeding they're currently suffering at the hands of accounts that exist solely to process fraudulent transactions.