i don't think it is scam because then jaynemesis (a famous crypto-trader at etoro) would have warned. Besides of that i stay away from bitcoin gold becuase i think it's the same rubbish as bitcoin cash is. it won't survive very long
How you can trust a 'crypto' trader, who is actually trading CFD's on Etoro instead of trading real cryptos on exchanges baffles me. He is probably some punk that got in within the last 2 years and think's he's a pro. I wouldn't trust anyone claiming to be a 'crypto trader' on EToro.