If I have to guess, they saw the error of their ways and dumped their fake altcoin (bcc) and now riding the true Bitcoin
BCC still standing strong now, it's in the top 5 in CCM so BCC fans has nothing to worry.
However, I do believe in the longer run it will not gonna progress like bitcoin has achieve, I personally don't invest in BCC
but it's good to spend a free money from BCC.