Where can we find the trustable icos ?
How can we solve the system if ponzi or not ?
99% of ICOs are scam . They collect fund from people and they are absent when the program start ?
There are no good resources for this.....yet. I think there is a vacuum in the market for services that analyze and rate ICOs on various metrics. There is demand for this -- I've seen lots of people asking these same questions, and I recall seeing Theymos looking for some kind of service to root out the scam ICOs from buying forum advertisements.
The problem is that we are still in the "wild west" stage. It's incumbent on you -- the prospective investor -- to get a feel for which ones are scams. Honestly, if you just read the ANN subforums a few times a week, it starts to become obvious.
Look for the generic/vague (bought) whitepapers, complete vaporware that lacks even proof-of-concept, anonymous developers/team -- look for proof of their IRL existence. These, to me, are the first telltale signs to look for.