tl;dr: You let it to trigger votes on your behalf for other members when you cant reach your computer to vote, the rest is automatic, it sleeps when you use the network.
Find out how to join here: https://plu.sh/altlan/
What does it do??
on hive, you cant have more than 100% voting power. This system waits till your voting power is about to go to waste, it then prevents that scenario by voting other members.
how is this done
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. ot makes a best effort to keep you on track numerically with the other users, you will get all your outstanding votes as fast as possible so if you have to leave your computer for a while, you can come back and your account will catch up.
the more you let the system vote on your behalf, the more youll receive
How do I join?
SOM 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://plu.sh/altlan/
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