Basically they are replacing btc as a median and using blocknet shares in its place. Thats what it looks like to me when its all boiled down. Rather than pay tx's fees to miners using btc and an exchange fee. You use blocknet shares and the fee is split up among the holders of the shares.
You would still have to pay transaction fees to miners of each coin. I still don't see the need for a microfee on top of the fee for using the "services". This shareholder "micro-fee" fee seems to exist only so shares can exist so there can be an IPO. Again, what's to prevent a fork of Blocknet without microfees?