The disadvantage will not be a big problem for gambling because something will definitely be a problem in any field so the disadvantage will not be affect the money making or anything because if only advantage are there in any field there is no risk and attraction will happened on that field so gambling field will need more popularity so it will definitely be there
Disadvantages in gambling is for gamblers and not for the creator of the gambling site, so it's a problem for gambler mate! you can't say that is not a problem, there is a thousands of gamblers lose a lot of money every month in gambling! The only one who make a lot of profit is the owner of the casino or the gambling site, if it's online.