i think is Because its looks like a digital bank that helps you to earn digital money without loosing anything. You can also pull out the bitcoin you earne
I think not like the Bank, transaction safer for me because people can hack and steal money you can tracked and you can take your funds. but in the transaction bitcoin, tracking is very difficult job, that is why there opportunities very low that you can get back your money if hacked. there are things good and bad things when it comes to the transaction bitcoin. the bright side of it is clear is that decentralized. you will remain anonymous for transactions you do. but there is also the side of the poor.