Except you can bet that a lot of cases will end up with a battle of back and forth emails arguing over whose fault it was and who should pay the $100.

The vast majority of support tickets are the customers 'fault'. They'll be things like setting up DNS records incorrectly, believing they don't need to pay a renewal with their old registrar just because they moved their DNS over to cloudflare, frustrations over cached resources, etc.

(op here) My belief is that I completely transfered everything to cloudflare, paid in advance, and didn't touch it. If this was as much my fault as any of the common tickets you listed I will deeply regret having posted this and will apologise to Cloudflare.