Genesis mining is known as scam. They claim they are legal but however it's almost impossible to get ROI with them, also they offer lifetime contract which directly means scam because why the hell will someone offer you lifetime money making machine? If there would be selling hash, than still ok but stay away from them. Seems you risked and invest, only wish you luck, more probably your money is lost.
They are not scam per se but indeed they are a dodgy company. They are much more legit than other cloud mining operations that are obviously ponzi schemes. At least they show footage of their mining rigs whether they are real or not.
I've used Steemit for a while, all i can say that the PoW payouts aren't great after the early adopters stage. Can you even mine with PoW anymore on Steem? I haven't been following the project since last year.
If you want steem, write up good content, you'll get some excellent rewards.