I bet only those who doesn’t understand what real trading is all about finds it more confusing whether he’s a gambler or a trader. Otherwise, they won’t be good in both if even in gambling, they still find it hard to assess theirselves if they’re actually gamblers for real.
Trading creates reliable traders, while gambling creates risk takers gamblers. But either of these two, at least one should know how to be a good trader if you’re trading and how to be a profitable gambler if he’s into gambling.