While I don't think it wise to be making categorical statements without verifying the facts, I don't think this is libelous because a libel must be a statement of fact that is not true.
The part about the rip-off snake oil seminar is pretty clearly an opinion rather than a statement of fact...
Only WLD does this. TR does not do automated trading, TradeStation does not do portfolio testing, Behold does not do automatic trading.
Unfortunately, word on the street is that WLD is slow, slow, slow.
I once lived in the same town as Seykota and his former girlfriend.
From what I understand from conversations with her, Seykota declared personal bankruptcy in 1992 or thereabouts. I've tried to find some record of it online but I only find references to an IRS case about the same time...