Proposal:Change the name from 'Blackcoin' to 'Darkcoin'. People are put off by the name at the moment, and 'Darkcoin' was succesful and changed it's name to 'Dash'. Meaning that 'Darkcoin' is now available and more appealing.
Black isn't really a racial slur or anything like that...
A few years ago, while traveling through India with my cat + ^^ it was actually a benefit to have dark skin.
Dash. and dark. are also decent names for a sarlac pit.