First, he mentioned explicitly that he did not pay for their service, he was a free user. Second, every system open to the public that has even a moderate amou

First, he mentioned explicitly that he did not pay for their service, he was a free user. Second, every system open to the public that has even a moderate amount of users has automated abuse detection and mitigation techniques in place. It's flat out irresponsible to not have such systems in place, ESPECIALLY if you have paying customers s the opportunity for abuse are huge.