I'm not really sure it was BC, to be honest. The IP addresses are similar in the sense that they're in Washington DC and that both are Verzion, but both are completely distinct and *were* on at the same time. On top of that, my logs showed that the IP addresses never changed. No sign of proxy since both were clearly on the same ISP and location.
BC's IP range: 96.231.xx.xxx
Pig's IP range: 71.246.xx.xxx
That said, if BC used either here then it would be a different story, although to be frank I don't really care if pig was BC or not.