What I'd really like is something that uses stylometry to track astroturfer comments, shills, fake news authors, advertisements parading as news, and PR campaig

What I'd really like is something that uses stylometry to track astroturfer comments, shills, fake news authors, advertisements parading as news, and PR campaigns, etc. Then just have those articles identified on places like Hacker News, Reddit, etc. Optional to block them if you want. Keep a list of identified writers/writer 'styles' that are penned by fraudsters. Like easy-list is for ads. That'd be the only way to clean up to the net. For a while at least.