Proof Of Importance? based on what?
POI is based on serveral things: How much NEM you have, how much NEM you are transferring to others, how much NEM other are transferring to you. The exact formula is not set in stone so far. That's we are a little vage how it works in details.
Importance score should be also based on how long you are logged on the network (harvesting) and reset as soon as you hit a block, that way everyone could find a block.
thx for the info.