I guess they don't consist of fake teams. they ran away with money from investors and traders. initially, their site and platform looked convincing. they pay and everything looks fine. but after all, is running and more people are depositing money on their platforms, then it all happens.
There is no point in telling about it at this time, because they already had the intention from the beginning to deceive many people when their exchanges were already being used by traders and investors, their website was closed and their telegraph lines were gone too, so what what's the point of discussing this repeatedly?
There was still a possibility for them to get caught by the police and did you see what happens with plustoken scammers recently? They have been getting jailed by the chine police and it's still possible to make the all getting jailed too as long as investors can create a report.
I don't think the police arrested them because if the police did this, they would disclose all these scammers' identity. In my opinion, they are hiding in a safe place because if they use that money, they will surely have a completely different life from us. Actually, I also lost money when participating in BCNEX, and this will be the biggest lesson for me because any new exchange will be risky.
Just like you here, first I sent them no problem. And nothing suspicious at all, went smoothly every round of the ICO. And after completing the sale they are still there and active, for some reason suddenly they have financial problems and eventually disappear.
I also learned from this case, that I must absolutely not believe in new exchanges. and don't even save our money in the exchange.