Im sure someone could make a tamper / grease monkey script to hide posts under a certain rep; but you'd be relying on others to flag the rubbish content.

I saw a script which hides resteems from the feed, so shouldn't be an issue. I'm a weee minnow myself but get agitated when I'm hunting for excellent content to give a deserving upvotr and get greeted by dozens of posts inviting users to comment for upvotes.

This is one of those quality posts among that rubbish. Thank you.