Hetzner - Traffic Use Notice - unlimited != unlimited
My friend got this:
We’re writing to you today because of your traffic use, which currently averages above 250 TB/month on some of your servers. Although these servers include unlimited traffic, this is far above what we consider fair use. In order to continue hosting your servers with us, the traffic use will need to be drastically reduced. Please check your servers and confirm what is using so much traffic, making sure it is nothing abusive, and then find ways of reducing it. We will routinely check your traffic use. If we continue to see such a high amount, we may choose to cancel your contract. (Please see 2.7 of our Terms and conditions: https://www.hetzner.com/legal/terms-and-conditions) Thank you for your understanding.