> E.g. Stackoverflow would be much less useful if I couldn't rely on "wisdom of the crowd" to rank the various answers on my behalf. Usually, the best answers are at the top and the worst buggy answers are at the bottom.
It works rather well for StackOverflow because comments are not supposed to be a free-form discussion but only technical answers. (I guess we can agree that it is pretty respected.)
> I lived through the old computer discussion forums without scores such as USENET, Compuserve, etc, and the lack of ranking wasted more of my reading time than Reddit/HN.
That's not my feeling. I don't think ranking is working well on this kind of free-form discussion forums.
Here on HN, I see more and more comments which, despite simply stating facts or being personal testimony, are greyed out. I cannot even figure out a possible reason (I am not looking for a reason I would agree with, just any kind of reason, of mechanics): they are not opinionated in a way or another, they are not part of a heated sub-thread, nothing. I just don't understand what goes on.
As far as I am concerned, I for example avoid like plague any post or thread that talks about C. I've been a C programmer for 25 years this year, and I know that if I post something about C, it will get downvoted. Opinionated, non-opinionated, based on my decades of personal experience or not, it will be downvoted (and when we say 'it' gets downvoted, of course truth is it feels like 'I' get downvoted). So I try to remember not to comment on those threads or even better: not to open them and let for example the RESF or people who only used C in their introductory programming course at the university repeat their mantra on how dangerous it is, for the 2000th time of the year, in peace.
If I post something semi-factual, semi-opinionated, I have to pray that it fits with the mood of the day of the readers of the day of the thread. The same comment could end up positive one day, negative another day depending on the crowd that has been attracted by the post title.
Anyway, I know I can always make a joke to get back a few upvotes ("oh no, we are not Reddit", well yes we mostly are, we just dress a bit better when we come over here), after getting a few downvotes for a mostly factual statement :-) If I really wanted upvotes, I'd post a random Wikipedia article and get more upvotes in 4 hours than I'd otherwise get in a year (and the moderator would find that highly 'substantive') :->