I recieved the letter below today. I have been purchacing domain names for many years now and point them at places like sedo.com. Today they deleted my account including 1200 dollar sale of domain that was sold through using there service. Lost over 1500 total... Dont trust these Germans!
Hello Jason,

A detailed examination of your traffic showed that it was not coming from natural type in and search engine query generated sources but from promotional and known bad sources.

Because of this we have no choice but to close your account, block your domains from the marketplace and withhold your unpaid parking revenue.

As outlined in our parking terms and conditions our parking program can only accept natural traffic. Redirected traffic or traffic from any paid sources such as link exchanges or promotional services and software is not accepted.