When people's views are divided, internet readers are a million times too quick to assume that the other side is brigading, shilling, spying, astroturfing, promoting secret agendas, fifth-columning, foreign-agenting, or (this seems to be the latest favorite word) disingenuous—even when they have zero basis for thinking so. (Someone representing an opposing view is no basis for thinking so.) This is a cognitive bias. It leads people to imagine nefariousness and project it onto other users. That poisons the community—and this poison is actually the bigger problem by far. We've even seen individual users singled out for attack merely for a different point of view. In the limit case it even approaches mob behavior.
Therefore all HN users are expected to have the self-restraint to rein in this impulse, most of all on paranoia-prone topics like spies hiding things in technology, nations planting foreign agents, and all the rest of this. Yes, these are things; and internet commenters imagining them is also a thing.
Here are a few of the other explanations I've posted about this.
https://news.ycombinator.com/item?id=20239719
https://news.ycombinator.com/item?id=20199254
https://news.ycombinator.com/item?id=19862158
https://news.ycombinator.com/item?id=19404162
https://news.ycombinator.com/item?id=19402447
https://news.ycombinator.com/item?id=16632589
https://news.ycombinator.com/item?id=16532039
https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...