so it will automatically generate into new token if I only store it on the exchange? How is it a positive news? sorry for this noob question.
It does not say this - it states the opposite:
"The swap/fork will happen automatically and you dont have to send the old COSS anywhere."
However, it wasn't unequivocally clear I must admit. They should have added - :even if you hold it in an external wallet" but I'm assuming that the statement implies this.