An example: Uber drivers requesting fake cleaning fee was recently discussed here on HN. Uber refuse to handle it properly, so people solve it by doing chargebacks only to find themselves blocked from the service.
Also heard it with lots of other vendors, but won't name without having something more substantial to back it up with.
If I have a shitty customer service interaction with an Amazon rep, I might have to weigh the chargeback versus the value of my Kindle library, my AWS instances suddenly going dark, etc.
In the case of Uber, I might find myself severely restricted in transit options in an unfamiliar city.
It seems to be part of the "Distrupt!" business model. The "customer" "service" team is basically disaster mitigation, probably taught to screw with the customers. Like AirBnB, $2000 worth of damage to your apartment? They'll delay for a few days and offer you $200 if you agree to an NDA. Or that guy whose dog died after being walked by someone who used someone's account an dog-walking-service...
Also heard it with lots of other vendors, but won't name without having something more substantial to back it up with.