I've been saving interesting threads and comments in my favorites (they are in my profile). Many old-timers are surprised that Hacker News has a favorite feature. Comments are tricky: to favorite a comment you need to first show its details by clicking on the timestamp.

Now, for the links. A lot of freelancing and consulting advice threads have a good discussion and stories from the trenches:

Starting as a consultant - https://news.ycombinator.com/item?id=21189801

Getting paid - https://news.ycombinator.com/item?id=4817193

Common mistakes - https://news.ycombinator.com/item?id=21728436

Lessons learned from a veteran developer - https://news.ycombinator.com/item?id=25658216

Branding and marketing - https://news.ycombinator.com/item?id=23282278

Hiring a personal assistant - https://news.ycombinator.com/item?id=29336234

Other pretty cool and fun threads:

Crowdsourced HN book recommendations: https://news.ycombinator.com/item?id=28595967

Product recommendations from HN: https://news.ycombinator.com/item?id=29353980

What 4chan thinks of HN: https://news.ycombinator.com/item?id=6747373