^ They have visual identification systems, which periodically get new material to ban out, so unless we know of other recently pulled clips, hard to determine what the actual problem way. Any other Ady clips get pulled?
http://youtomb.mit.edu/ is great for connecting some of the dots, but they can only process so many things, can't stay 100% on top of the issue. Too many videos, too many take downs. But every so often a trend emerges.