With respect, I think you are turning to the dark side here Enrique. Fundamentally the problem our planet has, is everyone dependent on energy extracted from Earth. All money currently issued and used, is energy extracted from Earth, it is the gearchain we use to haul energy into the economy.
You might see that the energy content in money has dropped in presence of ever increasing difficulty of extraction, it is becoming almost impossible in most businesses to remain competitive and profitable without committing what we used to call crime, ie theft, and actually murder. A lot of business now profits from death, murder, theft, you name it, it's all there, under the carpet.
How any platform gets it's energy as stands, is it puts pressure on its users to cough up a little of their energy in the form of money.
Those users then have to go work in the system to replenish their energy.
Since all are working in the system hauling energy up from Earth, all of it has to result in more energy extracted from Earth.
So the consequence of more and more platforms coming to depend on income from users, is more and more energy being required to be extracted.
You yourself are an exception by being more or less solar powered, if I read your previous posts correctly, so you might see ways to replenish your income by grabbing some more solar energy why not, it all does good.
But still you are in a tiny minority that might be able to do this. Everyone else has to work in the limited, extracted energy system for every penny we get.
So the answer is not for platforms to be seeking income from users, but for platforms themselves to become energy independent like you.
They can do this technically using the information I've published here in Medium (start with the “Money-fuel Tree”).
If they did this, they then have effectively unlimited income, by having the capability of scaling up their hydrogen backed up, which can then be sold to transportation, keeping all vehicles moving along, even those in the air (batteries can't do that).
With that income suitably scaled up, they can then reward users, for being users, creating on their platforms, or even just evaluating creations on their platform. See how that swaps things around, aligning interests, instead of dividing interests, whilst also solving the global energy problem?
Nobody would need to carry on extracting, if we were being paid enough by one or more platforms offering real revenue from purely solar created product.
I would say what you are suggesting is almost the opposite of that.