Opportunities from Hacker News Comments
The site turns HN into an idea-finding feed — tabs for Most Positive/Most Negative and an 'Opportunities' view plus per-story 'View Analysis' make it immediately usable. It's a tidy UX for skimming pain points, but the landing page gives no detail about the extraction accuracy, deduplication, or ranking method, so the real value depends on the unseen NLP and heuristics.
