How are curation rewards actually calculated?
After you read this article (with hf20 updates here, but the first article gives the essentials) by 
To sum an already tidy summation, squares are used.
Why is this good for minnows AND whales?
A wonderful and fascinating artifact of this is that it is far easier for a $0.01 vote to return $0.02 to its voter than for a $1 vote to return $2. Therefore, minnows can double their value faster than whales. Just like a game, leveling up is easier at the beginning.
This is maybe not worth a whole post.
The point is: redfish and minnows, upvote everything at 10-15 minutes that
- has less than a few cents worth of votes so far
and - you think will be worth even a dollar