Please don't do this. It's unfair on people who are commenting authentically, which almost everyone turns out to be when we dig into the data. The guidelines ask:

Please don't post insinuations about astroturfing, shilling, brigading, foreign agents, and the like. It degrades discussion and is usually mistaken. If you're worried about abuse, email hn@ycombinator.com and we'll look at the data.

https://news.ycombinator.com/newsguidelines.html

We detached this comment from https://news.ycombinator.com/item?id=45284046 and marked it off topic.