I can barely understand what Cryptosparks is being accused of doing since I don't understand exactly what's being offered in the thread TMAN linked to.  That's because of my own tech-ignorance, and I admit that. 

I would be happy to merit someone who could explain to me in a dumbed-down fashion what the API key thing is, what kind of bot Cryptosparks is offering (I assume it's a trading bot), and whether it even could be legit.  Promising a fixed return like he seems to be doing sets off all sorts of alarms in my head, simply because that's a hallmark of Ponzi schemes.  The merit offer is valid to anyone except OP and Cryptosparks just to keep it fair.