They are no joke. That doesn't we moderate every comment that deserves it. If you see a post that ought to have been moderated but hasn't been, the likeliest explanation is that we didn't see it. You can help by flagging it or emailing us at hn@ycombinator.com.

https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...

There's another aspect to this, though, which is that people with strong political views tend to view the site as dominated by their enemies. Meanwhile the people with opposite political views think their enemies dominate it. These perceptions are what happens when passionate feeling meets cognitive bias. See for yourself: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...