Those geeks that are recruiting to invest to their program and get's as high as 1% daily profit are obvious scam. My investments in gambling sites seems to be pretty good but I don't expect that to become higher as 5% monthly. As long as my capital there is secured and I'm willing to wait for longer time. Joining ICO's are pretty good so far but I can't secure 5% return monthly.
5% monthly from gambling sites is not always guaranteed cause if that was the case anyone would invest in gambling sites. Banks offer maximum 4-5% yearly so if you are able to get 5% monthly you have found a gold mine in my view. Which casinos you have invested that yield you 5% return monthly as I may want to invest there too ?