Because most of the time they see a fail token owned by a casino since they didn't manage it well. And its understandable on why they think about that since they already experience to lose their money by trusting to invest on those tokens since they think that it could bring them good profit in future. Now since they see more tokens created then they are skeptical to add this on their hodl list since maybe they don't want to experience another downfall anymore by availing these casino owned tokens. But in Rollbit the case is different since we se for so many times that there token pumps and the management owned this is so good implementing something can help their token to pump. That's why many got impressed with the current result they see since RLB is having a great time and showing more good potential to pump more.
That may be truth because lack of management could be a point to the failure of the tokens projects and I am sure this team won't make the same mistake, and also the team should be smart enough not to rush to lunch on multiple exchanges, because most at times, what lead to that failure is the attempt to fly on multiple exchanges that leads to the token losing its value and being unable to recover on the long run, So if the Rollbits team are smart they will only launch on a good exchange and allow it to gain traction before diving into any other market.