If you happen to be an active trader or know people that trade actively, you will notice that traders do not easily give out money ( i.e lend out money) not because they don't have to give but because their capital is actively and most times always involved a trade.
You have to understand as a friend to traders that even in times when big wins are celebrated, it is not still a time to ask them to help you with money for your needs with the thought that they are in profit, because if you do you will get yourself disappointed nine times in ten chances.
Work for your own money, nobody owes you anything.
Well, it was the call of the trader if he wants or not, and I believe that he knows already what will be the consequences of that. Isn't wrong if we lend people especially your friend provide that it was just enough that he can pay us back in a specific time frame. And probably we know already the capability of the said person that is why we trusted him/her.
But if the said transactions happen online, that will difficult, and for me, hell not for that as it was really hard to trust people online, especially when asking for money.