If I understand it correctly, than you have to choose a differnt folder and port or you destroy your bitcoin core install.
So better - as usual - save your wallet.dat somewhere safe. Maybe twice on different place wouldn't be a bad idea.
Wait so everyone currently holding Bitcoin will randomly get extra money for nothing in the form of BCC? I am confused...

Definitely brother.
Its a free coin from them.

And I dont know what are they up to this giving bcc as equivalent of your btc.
You just need to transfer your btc into electrum and you'll get bcc.
I highly doubt this coin, I just watch this coin closely.