we are using your posting key only for upvoting. At minnow level your upvote is worth 0-0.10$. We pool together the voting making it worth more. 100 Minnow have the votingpower of a Dolphine. 2000 Minnows got the voting power of a Orca and 4000 Minnows got the voting power of a Whale, so by pooling we reach higher efficiency, not 4000 people have to vote one by one, but we pool the vote and people save time and can specialise.