Totally agree. When I first joined HN (2100+ days ago) there were posts nearly every day of the 'Show HN: My new startup/website/app/etc' type and the thoughtful feedback and comments were genuinely helpful and insightful. It wasn't uncommon for multiple people to actually take screenshots and rework design elements, provide thorough user interaction impressions and potential improvements, offer assistance in numerous ways (debugging, introductions, alpha/beta testing, etc.), and be generally supportive. HN truly seemed like a community of semi-collaborative or at least fully helpful hackers.
It saddens me that the most common response these days seems to be some version of 'Let me list all the reasons why this is crap.'
What happened?