[znpy]

it's no vandalism, it's done on purpose:

https://www.boringcactus.com/assets/site.js

    //     Never read Hacker News
    // - Aphyr, "Hexing the technical interview"
    if (document.referrer.startsWith("https://news.ycombinator.com")) {
        document.location = "https://upload.wikimedia.org/wikipedia/commons/d/d4/Human_fart.wav"
    }

this also mean that copying the link and pasting it in the address bar will get you no fart sound

childish behavior if you ask me