If someone which follows the set of rules and be discipline enoff. Can people make 50-100 $ a day just gambling in online casino.....?
It all takes luck and chances. Nothing is sure but one thing can also be sure, if winning is not, losing is sure to happen. Maybe in one day you can earn the amount you mentiond but chances are not everyday we win in gambling.
One must be extremely lucky in every circumstances to make gambling profitable for the long term but i believe that no one is really that lucky to be able to make profits out of bitcoin at every turn.