Lowering the mule account appeal
I Would like to suggest, that in Ingress, like in both POgo and HPWU, it should be possible to buy more cryptocurrency space (higher item-cap) for either CMU, or if better, a new currency, that is earnable only.(to avoid Rich/poor diff.)
Be it CMU, that you can also buy, or a new earnable only currency:
an Earning system, like in the other games could be with a Daily cap like in POGO, Or like with the Daily task in HPWU, where everyone has a fair chance to earn the same amount Per day.
it could also be level based, much like the amount of XM increases with level, but with the diff. That recursion does not set it back.