But why there are not warning feedbacks left on all those who were managing that casino? Because some new people do small mistake so-called all trusted members one after the other gives a negative feedback.

This makes this forum trust feedback biased to only some people - https://bitcointalk.org/index.php?action=trust;u=315650

I know there is no solid evidence that they didn't cheat but so many investors lost money on their business so some trusted people must leave warning feedbacks on their accounts so that next time other people will not fall on their new traps.