Is it even possible to misrepresent the robot's capabilities? In the UK most (all?) advertisements come with cautionary notices such as "capital at risk" or "past performance not indicative of future returns" or similar...

Although obviously such warnings can't reach some people... My favourite example of this was the collapse of OptionSellers.com following the huge move in Natural Gas futures. I mean, they were selling options - it's right there in the name...

https://www.bloomberg.com/news/articles/2018-11-19/hedge-fun...