No, they won't. Feds haven't lifted the buyin suspension. From what people have posted, brokers believe their customers' shares are real. If you're unsuccessful defending yourself, the broker could say: "Sorry, it's your problem not ours."
Sure, dilution sucks. By making the DTC and broker-dealers adversaries, Megas runs a big risk of not having this stock ever trade again.
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"We simply attempt to be fearful when others are greedy and to be greedy only when others are fearful."
-- Warren Buffett