If you feel like being simultaneously helpful AND masochistic AND protecting yourself from reproach, I suggest having them read and sign a short document in which you mention that HEX is a superb opportunity and they will not formulate any reproach to you in the future because you did give them the info. Then you can show them again the document 10 years from now. When HEX has done 10 000x (or more ???).
That's a biased point of view. What if we are on the wrong side of majority but just don't realize it? I'm not saying I believe that, but you have to step back and allow the possibility that we are in our own echo chamber.
Crearan una ICO, sera una criptomoneda o un token sobre ethereum? Eso influye mucho, porque si llega a ser un token, el ETH puede subir, considerando la popularidad de facebook, pero tambien podria crear congestion en la red de eth. Ahora si es una criptomoneda, se podra minar o sera mineria privada como el ripple?