I have Bitcoins now in Poloniex and Cryptopia. I need to change a lot of Bitcoins to fiat around 24.11.
Does this cause any problems with Bitcoin or Bitcoin Gold?
Is day trading in Poloniex and Cryptopia okay now if i want to get Bitcoin Gold?
Nope you wont have any problems with Bitcoin Gold as that fork already occurred so if you had BTC at the time of the snapshot you will be credited given you had your private keys or the exchange you had it on honored the fork themselves. Also you need not worry about transferring for B2X fork either because that one has now been canceled and postponed.