Comment by yareally

> Even though the quality of discussion on HN might ebb and flow, or there might be more negative comments than positive at times, the culture here isn't ever going to tolerate Natalie Portman, hot grits, or image macros.

HN suffers from a more mild case of it with people being compelled to link at least one or two vaguely relevant xkcd comics in nearly every discussion without additional content. I like xkcd, but there's no reason to create noise by linking to it any time a comment or story reminds someone of it.