There will always be people defending such schemes until they shut down. Look back at Pirate (for example), there were plenty of die-hards that defended him until he shut down and didn't pay out. Maybe these people just want to help perpetuate the fraud or maybe these people are really just that naive.
As long as people are greedy and fall for scams, the scams will continue to exist.
In this case, much like other similar "investments", a simple question is "If they can make as much as they say, why do they need our money?" If they are really that good, why wouldn't they fund their own operation and keep the profits for themselves?
Why the fuck do you even care if I loose my money here or not?
Some people do not like seeing others fall for an apparent scam or they do not want to see the operators to become unjustly enriched.