Let's one of your friend say he/she (for simple reference, I will just use 'he' throughout the thread) just know about Bitcoin. And he purchased some Bitcoin and invested some of it to cloud mining site. What will you say to him? Would it be nice for you to tell him to stop? Or let him learn online scam the hard way?
this will be a bad thing for between him and bitcoin. lots of people are afraid with using bitcoin just because their first experience with bitcoin wasn't that much good (they almost got scammed or earned very less from faucets) and then they prefer to left bitcoin.
BTW. I will warn my friend and try to convince him that the whole bitcoin is not like that. so just leave cloudmining but don't leave bitcoin.
people will always believe a flashy sales pitch/schpiel.
i've never heard anyone actually stop and ask how cloud mining works; yet people seem too happy to hand over the dough.
all cloud mining consists of is a bunch of rented hashpower (or a small hashing farm) set to mine literally at the will of its owner.
if the owner makes a decent profit, he might pass it on; but there are no honest crooks in cryptocurrency, so you'd be lucky to get back what you put in. why people don't take the 1-2 weeks to learn how to setup a basic stratum against a bunch of coin daemon is literally beyond me, there is no shortage in the way of guides/howto files on the internet.
live and let live, the saying goes.
a fool and his money are easily parted.