I'd like to point out that MANY scam brokers , both binary and forex, have disappeared without the slightest trace of regulatory interference. This can happen if they get too much bad publicity and decide to reopen as a "new" company, or if the owners finally stole enough to retire to a private island.
Regulators tend to publish something when they seize companies. If they don't all it would take is one employee with a client list to keep the scam going.