Yeah, they could use it and payout directly. But many can't invest it back into crypto because of laws or they don't want to authenticate to exchanges. I know some of them and that's why I had the idea to create something like that... =)
I take ~0.0125 Euro per 1 Euro as a fee to transfer the money to Steem. There isn't that much money to make, unless there are thousands. I'm glad if it is useful to two or three people. :3 If not, I tried it... :P
Because I have to flip the money twice (EUR -> ETH -> Steem), I have to pay 25% tax for that here in Germany. I might use some exchange where I can exchange directly to prevent these costs. In Germany, cryptocurrency is tax-free, if is is being hold for at least 1 year. (No financial advice, of course.)