IMO the interest screws everything over.

Because the interest is so high, the total money supply in the economy increases very rapidly. And there's 0 inflation on the things you can buy to keep up with the increasing money supply, you just end up with a fudgeed up economy with way too much E-Pigs that cannot be spent.

Also, having the interest rate dissuades competition from newcomers. I mean how can a new member compete if I'm earning like more than 2500 E-Pigs on interest EVERY DAY!!! And that leads to really screwed up money distributions - you get mostly either the very extremely rich and very extremely poor (relatively).