Wow, this sounds really impressive, especially:

> Here are a few numbers: StormForger did a total of 1,213,583,187 requests in over 50 load test runs to the Quizduell system and a total of about 2.21 TB of data was moved. The error rate was at about 0.000000216% (1 error every 4,624,616 requests).

Sounds useful for doing end-to-end from a cloud provider to another cloud provider, but there's more lessons to learn when you have 20 different ISPs and a couple dozen different clients sending you traffic in different ways.

For example, for free services without customer support, usually you don't notice the bugs from all these different devices trying to access your service under load. Once you start charging and provide support, suddenly people are calling you with all kinds of edge cases that affect a minority of users, and you have to invest time in tracking them down or refund the money (which is a bad idea since that builds a reputation that you'd rather dump customers than help them).