Yes I invested on not top 100 coin like dero coin ( privacy smart contract based on cryptonote ) & lethean ( p2p vpn blockchain ). Yes it is so risky to make investment on some low cap coin like this, but it is like got a jackpot when it can reach to the top 100 coin. So maybe we can called it high risk high profit when make investment on coin like this.
Probably, in order to invest in such coins, you should have a good experience and understanding of what you do and what you risk. You are well done, I hope you will succeed in this matter 
But I do not want to risk, I have little experience