If someone wanted to boost their reporting score, they could just pick a 100 page spam megathread from the altcoin boards and report almost every post for being spam.
I believe only tech-savvy can do this by scraping data and using plagiabot to find plagiarism. I don't believe that we can have time to manually check plagiarism. Report after plagiarism found is very easy and fast, but finding plagiarised posts and proofs of plagiarism are very difficulty, especially if we don't have tool to do this.
By now, we've not known who created plagiabot and how it works, but since the release and actively operation of that plagiabot, we have seen thousands of accounts banned permanently, and there is no exclusive rank.