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Wrong. You earn far more by upvoting a post with close to no upvotes at 30min, and then have a whale or a large number of people upvoting that post after you, than voting on a random comment that gets no more upvotes afterwards.

"You earn far more by upvoting a post with close to no upvotes at 30min"

Yeah, and while we're at it, seen any good unicorns lately?

Comments you can see 25% because usually, they have only one voter. But posts, it is almost never the case.