The pool is just giving you bc instead of btc.   There are a few switching pools and they track difficulty of coins to mine the best value then convert it.  The benefit here is you dont waste time holding other coins

I was asked why blackcoin is so unique, besides pos.     I was going to mention the fast transaction times, but some think this is just a simple mod like litecoin ?     Seems impressive to me but is there any other utility this coin brings that I could say in defence of the realm of bc