Just like the rest been saying on here is that its none others business on what you do because its your money. There are really those individuals who do care and who do not about others views and perspective towards them because each of us does really have that different behavior when it comes to this one.
But more view it as a negative activity, but even so their money is their own responsibility, not about the point of view of others, as long as it does not harm anyone.
I am only a gambling player who plays for pleasure only, not to chase big profits.
But the part of those who pursue big profits with large capital as well, of course it is better to keep their gambling activities secret, it is better.