Your words and your signature does not match. If you think that gambling will lose money, think of how many people will lose their money when they play gambling while clicking on the your signature link. If you think gambling is too much bad then you should first quit gambling and the gambling signatures before giving advice to others.
I thought I made it clear but here it is again: there is nothing wrong with responsible gambling. As far as I'm aware most reputable gambling sites are not promising to make you money. But if you think you can make money in gambling you should not gamble (this is a general "you", not directed at you personally).