Perfect example. HN will see a page with 6Mb of images/video, 1Mb of CSS and 200Kb of JavaScript and say "look at how much the JavaScript is bloating that page".
Nah, it's the opposite. JS tends to perform better and be more usable for the same level of feature complexity (people who want more complex sites, for good reasons or bad, tend to use JS, but if you compare like with like), HN just likes to use them as a stick to reinforce their prejudices. (E.g. if you actually test with a screenreader, aria labels work better than "semantic" HTML tags)