You don't have to engage with things you are not "here for" that's up to you. It's not against the rules and as every "hacker" would agree with stop censoring other people.
The point of hacker news, stated in the guidelines: "Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity."
Hacker News isn't, and has never been, a strictly technology oriented forum.