Some are clearly legal liabilities. The rest almost certainly have high fraud/chargeback rates. Can you imagine how many people must dispute what they paid to a psychic
> Telecom – The telecommunications industry is much more proficient with technology than it used to be. However, once services have been provided, recipients may dispute them. Card-not-present transactions are a mainstay for telecom companies.http://www.aliantpayments.com/who-we-service/high-risk-proce...
I would imagine that things like VoIP service are targeted by criminals who constantly need new, anonymous phone numbers for other scams.
Stripe's real business is measuring and assessing risk. The moving dollars around is the easy part.