tl;dr: You let it to trigger votes on your behalf for other members when your account hasnt been voting, it operates by itself, it keeps your voting power full for when you return.
Find out how to join here: https://som.lan.247420.xyz
What exactly is minnow swarm??
on this network, you cant have more than hundred percent voting power. This system waits till your voting power is about to go to waste, then votes other members of the group to prevent that waste.
how is this determined
it balances the votes you make and receive to determine your position for the next vote, if you post every so often you should be able to get what you can get from it. you will get all your outstanding votes as fast as possible, when youre behind, you will get more votes, when youre overpaid, it will spread to other users a bit first so if your unavailable to post for a while your account will remain active voting, and you can come back and enjoy more votes.
as your account grows, so will the votes you receive
How do I join?
minnow swarm uses ordinary hive authentication mechanisms, the trigger pages that calls the authentication mechanisms are opensourced and easy to inspect, you are free to leave at any time, if you have any problems we also have a very active community that have always provent to be helpful
Alternatively, you can also use your own tools or wallet to delegate voting access to the 
Find out how to join here: https://som.lan.247420.xyz
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