When I opened this post, I saw it was much wider than any post I have seen on hackernews. I tried looking into the css, I thought it was somehow different, for whatever reason.

I could not find anything and then I encountered your comment. Apparently, your unbreakable long word makes the site very wide.

I didn't know comments can affect how wide the page borders are. Is this not bad UI? I am unsure who to ask.