You simply got unlucky I am afraid, I myself have had nothing short of a positive experience of it and though I know it sucks that someone did that you cannot tar everyone with the same brush, the majority are very honest and upfront. I am sorry about your losses, but there are over 50 companies now that have nothing to do with the scammer in question; but in all honestly it is not the exchanges fault really...things like this do happen even in real life and that is why here we have laws about having multiple identities...
(That is not to say I have not chosen shares that went down from time to time, we all have off-days lol)
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And in furtherance to the comment made above yours "to the halycon days", are you serious???!
The "good old days" of banking and gambling were nothing but a scam-fest of ponzi schemes and theft on a scale never seen before in history, the ONLY exchange to come out of those dark days is SlCapex, and that is because the owner Skip takes it very seriously, not just everyone is allowed to list, and if anyone has seen some of my comments to CEOs they will see that they are grilled intensely as to how much money they need, the value they put on their company, what they will use the money for and in some cases their mental state (when they overvalue their companies to preposterous levels)