as it seems, one day before BTCgold fork, they have not yet successfuly deal with replay protection issue. As far as I see, they still offer bounty for someone to implement it for them.
THIS IS VERY DANGEROUS and could lead to losing your BTC if you do get BTCgold and transact it. Please get informed about the risk of this shitty fork so you do not end up losing your coins!
Here is a bit of info about this related to the previous fork.
https://themerkle.com/what-is-a-bitcoin-replay-attack/
Not to mention huge premine they have. BTCgold is obviously nothing but a scam. I m really surprised people get hooked into this kind of shit every time.
https://cointelegraph.com/news/bittrex-issues-official-statement-about-bitcoin-gold-warns-users