This one wasn't quite as huge as some of the others but it really was a gem. The 'system' was comprised of a single zigzag indicator on a 4h chart. Every time a new zig(or zag) appeared, you took a trade in the opposite direction. If the market continued to move against you with new highs or lows, the zigzag obediently followed along, picking the 'new' top or bottom, and you just double down as many times as it takes(cus you know its gonna be right eventually, right?). One poster actually pointed out an example of where the zigzag recalculated a new high 25 times in a row, he was pretty much ignored.
The thread was filled with pearls of wisdom like 'Keep.It.Simple.Stupid' and 'Trading doesnt need to be overly complicated!', the kind of tripe that newbies flock to and absolutely love. Equally insightful posts like "Can anyone fix the zigzag indicator so it doesn't repaint???" were also abundant.
The amazing thing about it was that the guy actually turned this into a signal service and had paid subscribers.
"A cool, disciplined trader will take an average system and make money with it. A nervous, arbitrary trader will take a brilliant system and wreck it."
Hilarious signature, bro! You made my day with that one....