Threatening legal action or publication of facts for the purpose of reclaiming one's own property or entitlement is not extortion (blackmail)
Most of the people Fireball has conned have no idea that they have even been scammed. He preys on people who have no knowledge of financial terms or common practices. All I'm doing is giving a little information that most people who have never traded derivatives might not know.
From volume charts it is clear his business has been steadily declining. People arrive at the site, lose money and leave, or if they are a bit crooked themselves they play along with the price manipulations and try to profit from the people who do not know what is going on.
As for the money, of course I will probably not get any of it back. He will close the site eventually and create a new user name and start a new business. But at least one other person did apparently expose his practices, then drop the matter in exchange for Fireball refunding some of the funds he scammed.
The real problem with exposing Fireball is that most people do not understand his scam and it is very difficult to explain. So blackmail, extortion, more nonsense words he throws out to try to trick people his way.