I am inclined to agree with Franz_Huber.  It was obvious to anyone with a couple of brain cells that something wasn't quite right at the very beginning of the hashlet thing.  suchmoon started the very first thread asking questions right out of the gate and was pointing out red flags to anyone who bothered to think at all about it.  I had purchased hardware from gaw before that but I also never touched the hashlets.  Even in the very beginning of the hashlet craze when there was so much hype it looked to me like someone could probably jump in and make some money as long as they got out quick but I agree with Franz, only an asshole would have done so (if they believed it to be a scam, as I did).  So I think it is actually fair to say that idiots and assholes were the biggest population of investors.  Because generalizations are, generally speaking, bound to have exceptions, I will allow for some few investors who may not fully qualify as either but probably that group is pretty small (I know some people had hosted hardware that wound up going down the hashlet rabbit hole so they obviously didn't choose to be involved for example).