Between ethereum and koinos, it's much safer to pick eth as investment, if we look the history and reputation of each currencies.
Thats like saying people should NOT have bought ETH and Bitcoin early. Are you sure thats correct? Because you could make $100m buying eth or btc early but only if you trusted in their vision and went against public opinion. Now can you look at KoinOS and tell me it cannot go x1000 because it is still early and one of the few good projects currently that are still extremely cheap? With a great team? Working daily on github? Have you checked all that?
I bought Polygon early, Solana, Avax early and thats the only reason i have 15 Bitcoin now. Because i trusted them when they were still cheap. If I had listened to the mainstream I would maybe have 0,2 bitcoin now.