An example of the latter: Since March 2020, there have been many, many discussions on HN about work-from-home versus work-at-office. I myself started working from home at the same time, and articles about working from home started to appear in the media around then, too. But my own experience was a sample of one, and many of the media articles seemed to be based on samples not much larger. It was thus difficult judge which most people preferred, what the effects on overall productivity, family life, and mental health might be, how employers might respond when the pandemic cooled down, etc. The discussions on HN revealed better and more quickly what the range of experiences with WFH was, which types of people preferred it and which types didn’t, the possible advantages and disadvantages from the point of view of employers, etc.
In contrast, discussions that focus only on general principles—freedom of this versus freedom of that, foo rights versus bar obligations, crypto flim versus fiat flam—yield less of interest, at least to me.
That’s my personal experience and/or anecdote.