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People who wanna cheat, are going to cheat. do u think whales and programmers here are not cheating? But, all the minnows, dolphins get a fair chance if trending/hot/promoted pages are removed. that way one will only search for posts/blogs one likes. Start noting down the top 20 trending posts daily for next few months, you will realise that most of the time its the same type of posts and sometimes same blogger too.

Limit number of posts to 4 a day. In fact even 4 is too many unless you're 2 or 3 people making new content to post. Remember this is a site for CREATORS, where HIGH QUALITY content is supposed to be rewarded. So far the rules don't do that.
Also lower the threshhold for when votes start to lose value, to make it less profitable to use paid bots.

We super rarely see high quality content on trending page.

\i would say ban the bots altogether.

Yes true, but it's impossible coding-wise apparently. So best bet is to make them less profitable to use.