Top Comment Highlighter
I wrote a quick and dirty script that I wanted to share with HN. This bookmarklet will put a border around the top 10 comments on any comments page so you can quickly see what comments other readers find valueable. Just create a new bookmark and copy the text below into the URL field.…
Top Comment Highlighter launched on December 7, 2010 with 8 votes, #36 of 98 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 15 years on.
What it does
In the maker’s words, at launch
I wrote a quick and dirty script that I wanted to share with HN. This bookmarklet will put a border around the top 10 comments on any comments page so you can quickly see what comments other readers find valueable. Just create a new bookmark and copy the text below into the URL field.…
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CommentblocksFeb 2026 · commentblocks.com · ▲101Hey HN, I'm a freelance web developer and got tired of the endless email chains during website QA. Clients would send screenshots with red circles, or worse, Word docs with "the button on the page with the thing." I'd spend more time decoding feedback than actually fixing stuff. So I built Commentblocks. You add a script to your staging site, send clients a link, and they click anywhere on the page to leave a comment. That's it. No signup for them, no explaining how to use it. Each comment captures the exact element, viewport size, browser, and URL. Comments show up in a dashboard or can go…

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