Problem with "free" income is that you are going to spend your coins to get stuff for "Free".  However, that stuff wasn't free for the person who grew it, created it, or what have you - they had to work for it.

So what you've done, essentially, is enslaved the producers for that period of time they made that item or service.

What your saying is along the lines of: lets end poverty by simply giving everyone on earth who is poor One Million Dollars!  Then the producers can work their butts off for that money that was given to the poor people.  Couldn't be simpler, why hasn't anyone thought of that before?!!!!

The real way to get un-poor is to increase your value to the world - skill sets, working harder, etc.  The only way known to man that works.  NOT hoping someone gives you money for nothing.