I like this idea! There are many practical issues to sort out but I'm generally more in favor of active action against abusers rather than simply encouraging everyone not to abuse.

users could then see the posts, order them based on tags or content

I assume the app could have multiple order options but the most useful one for me would be to sort based on payout or, if possible, amount paid to bidbots. This way, we can better utilize the time we spend reviewing and voting for posts that have the biggest impact on the reward pool.