I am also baffled about the use of the terms investment here too. Is it the money use for gambling or money used to invest in a gambling platform which in return will give a person some passive profit in depending on the platform profit?
I don't understand why you guys are getting so confused here. Investing itself means pouring your funds into something with the expectation of acquiring profit which is what gamblers try to do with their funds in gambling sites.
There's no really needed to get confuse on certain situation since any gambler can call what they want to describe on the money they pour on gambling sites. If they think its investment for them since they are looking forwards for good returns while playing then let it be there's no one actually criticize on his definition towards that action. But if some think this is not investment since this is just pure gambling with high risk actions then let then think that since it all matter on peoples description and let everything think whatever they like since we have freedom here. As long as they are fine on what they do then that's what matter the most here.