To get free Bitcoin "gold", one just need to keep Bitcoins in exchange? Like for exemple did Kraken.com last time give Bitcoin Cash to all those who had Bitcoins? Relatively new in this world so don't know what happened in last fork. Or one need to keep them in particular bitcoin wallet to get free gold?
yes that is what you should do keeping your coins in your exchangers account to get free coins. During August splitting we see how most of the people that live their coins in exchangers sites get free coins I also got free coins from poloneix. Some also keep there bitcoin in some wallets and get free coins then.
It is not yet conform that either this time they are going to give extra coins or not. but i think that there is no need to confuse about holding bitcoin. i am too much sure that everything will be in favour of bitcoin. After hardfork it is also expected that the price will again boost and this time hopefully will cover 7000$. So holding bitcoin during hardfork will be not risky but will be more profitable.