What I can say. My county tax my boss by 50% of my salary for nothing just because you live in a county.
And my boss pays me 1/10 of that what he wrote on a quotation for my work.
While ICONOMI with 30% covers:
- marketing
- costs of using a platform
- you are working under mark of ICONOMI (so you rent brand name)
- ICONOMI take care of customer support

If you look on real life business this is good deal
Do you know how much Steam have fee for their best content creators ?
steam have 75% FEE/TAX. google for it:
"The percentage of revenue an item creator receives from direct sales of their item in this Workshop is 25%, as stipulated in the Supplemental Workshop Terms."

So ICONOMI is fair with their model 30% is 2.5x less than even good business like steam.
If you think that taxing by 30% of income is a lot try create own platform/pay for marketing/hire customer servisce,
then we will talk about 30% fee ,  OK   ?


We are going in good direction, trolls will FUD ICONOMI will work and we will see who will win.