I ran a traceroute to Hetzner Falkenstein from Wrocław last month. 14ms, clean path through Frankfurt. But the interesting bit was the reverse: their abuse form auto-replies with a copy of the relevant ToS clause. Section 3.2 for DDoS mitigation, 4.1 for "resource abuse."
They have it templated. They know exactly which paragraphs they enforce and which they ignore. The 80% clause is real -- I know two people who got the warning email. Both were running BOINC. Both moved to Contabo, where the price is lower and the enforcement is... different.