I already showed why it's a scam with my previous post.  You gain yield on assets that don't exist.  You might be able to claim this is OK if participants enter this scheme knowingly signing their life away as unsecured creditors to the banks for a meager reward where they gain more than you do, except for the fact that the banks are backstopped by the government which screws people who don't even willingly submit to this ponzi scheme.  Also the fact that they make it illegal to even tell people not use banks (run on the banks) or to use different currency the govt/bank cartel don't approve of.  The act of trying to ban cash also forces you into them as well.

So no, it is not a legit institution and of course it's a scam.   These people are literally devils stealing the wealth of old, geriatric people in wheelchairs via indirect means.  Take into account the idea of compound interest.  The fact they're gaining compound interest on assets that don't even exist means they quickly overtake everyone else and the endgame is like a game of monopoly where one player owns all pieces on the board and everyone else has no option but walk away from the table with the game ending.  In a centrally controlled system they can also manipulate interest rates then front run the market with insider info at leverage to accelerate this process even faster.

The bank doesn't actually win in this case, it just means the monetary system collapses since it has no value if only one person owns it all.  This is how we ended up at the "zero bound" of interest rates now and why they talk about helicopter money and even negative rates.  They're just attempted workarounds to the problem they don't want to address that the bank actually has to give the money back for the system to continue.  Negative interest rates and QE are entirely useless in this context, though.  Neither of those mechanisms effectively re-monetizes the base.

This is why helicopter money is the Jewish banking plan of last resort, but all it really does is just prolong the collapse a little longer.  It is clear you do not understand any of these issues and why things like fractional reserve are always simultaneous scams and time bombs waiting to go off.  Either that or you're some type of banking shill yourself.  The fact that we saw QE being done already, which is pretty close to helicopter money, means this thing is coming down like the Hindenburg very soon.