That message is a bit outdated as the bot mentioned there is when Hive account@ocdb used to sell votes to whitelisted authors pre-EIP, now it's manually curating. About short content, nothing wrong with that, we adjust the vote % accordingly. Also when posting through the beta site onto our community you don't need to use any specific tags it will land here anyway but if you post from the live site steemit.com you need to use the #hive-174578 tag so that it lands here. :)