Personally I don't see cloud mining as securities. They are a new type of investment that doesn't really fit under anything, a common problem with loads of crypto related things. I think they labeled it wrong but I do believe they need to be regulated as lets be honest its super easy to start a ponzi scheme in the cloud mining space, it's famous for it, and many have and many have been conned.

I think you have taken a precocious step and there is no problem playing it safe clearly you care more about creating a good channel than promoting cloud mining which is respectable.

Hashflare is probably legitimate but I can't say for sure as they are very secretive. Genesis mining on the other hand is (almost certainly) legit imo. The BBC have even done a documentary about cryptocurrency and they featured in it. Now they have gone big though their prices have rocketed up so they are not going to be as profitable as before, any very profitable opportunities they probably just do themselves as they now have capital they didn't when they started and don't really need outside investment, so why even bother with it?