It's a kind of voting system, not something supernatural.
It could be easily set up within a small voluntary group of people as a kind of experiment (eg a type of commune). Psychologists are constantly doing controlled experiments with how people treat each other in terms of resources, seeing how far people cooperate or compete, or what factors make people generous or selfish.
At the level of a whole country doing it, is it any more impossible than various forms of (not yet existing) communism or anarchism that people imagine or invent?
You may well believe it is impossible due to your own political beliefs, just as others may believe that communism, anarchism or other political 'utopias' are impossible, but its hard to prove either way and it doesn't stop people discussing it.
There have been systems of voting that are linked to property ownership. There is nothing bvizarre with discussing a theoretical system where the tables are turned and voting power is linked to levels of deprivation and need. Even if it is just a theoretical discussion it doesn't make it silly or stupid.
If you feel it is a waste of your time or you are not interested then feel free to stop discussing it. For example I haven't ever contributed to a thread about football on these forums but it doesn't bother me that people want to discuss it.