Actually the system encourages this type of thing. Take a look at services like Streemian.com made by none other than a leading developer of bitshares and steem @xeroc it helps automate your voting. There is also proxy voting built into the system too. Steemit encourages you automating your votes by attaching it to trusted accounts.

You still have to pick the authors you trust with your vote. Also I might add this is merely an update to @furion's already popular script.