There's a degree of opinion in most answers anyway especially as there's often multiple ways to do the same thing and every answerer will have a preference of some kind. I don't necessarily see this one as a particularly subjective discussion anyway, or why you think I'm trying to make SO be something it's not. In any event, why are marginally subjective discussions are a horrible thing anyway in a Q&A site?
Nobody is going to be working on a project and say "My client requires the use of obscure data structures, better Google some!". You can bash the multitude of jQuery questions, but having worked in a variety of settings, some people need things spelled out for them. You need a lot of simple questions with alternate wordings, different permutations of libraries, etc. Even though you can generalize these answers, they're hard to find from Google, and a lot of people will read "Undefined variable foo? Nonsense, my undefined variable is baz. Better open a new ticket".
I think I heard this criticism of SO for about 1 million times and this is the 1 million + 1 that tripped my fuse, so apologies for that. This question, and the answers, though IMO are bits of trivia and opinions more suited to a blog post.
Does it have some marginal usefulness in exposing some people without background to some random data structures or algorithms- maybe. The question is still there, it wasn't deleted, so SO is acting as the resource that you'd like it to be. If it's your first exposure to data structures I think there are better options out there (text books, online courses). If you are looking to solve some particular problem this is probably not the best resource. So it just stands as a (maybe interesting) bit of computer science trivia.
There are endless subjective topics that are tangentially related to programming and may be fun/amusing/interesting but SO is about things that have answers, not about discussions. I like it that when I have a question I can search and get a good answer for it, not just someone's opinion. For entertainment value and interesting things I go to other places, such as HN...
Try asking such a question today, or any time in the last couple of years!
> So it just stands as a (maybe interesting) bit of computer science trivia.
Just because you label it trivia doesn't necessarily mean it wasn't important to the asker or the thousands of people that read, commented, and upvoted. Just like people asking about jQuery, the asker had a question in mind and wanted to crowdsource the answer.
> but SO is about things that have answers
An opinion can be an answer too.
> For entertainment value and interesting things I go to other places, such as HN...
Why must the answers on SO be bland as tofu? You seem to give the impression that learning and the SO answers must be plain and dull, and any hint of entertainment must be quickly quashed. I see nothing wrong with being entertained and educated at the same time, especially as things that are entertaining tend to be more readily recalled.
Why do we have vegetarian restaurants when the majority of the world wants meat?
http://cstheory.stackexchange.com/questions/1539/whats-new-i...
I have yet to see a good argument why these types of questions detract from the main site and asked on a separate site (http://programmers.stackexchange.com/). If the problem is cluttering up search results with opinions, then they could be marked as "subjective" and people could be given the option to avoid these results.
I guess my problem is that Joel and the others running the site don't want it to be a forum for those discussions. This topic has been beaten to death already and the outcome isn't going to change. So "we" need to let go of it. It's like Go and generics... (just kidding)
I can think of a few reasonable arguments. A lot of subjective discussions tend to degenerate into holy wars or popularity contests. It's hard to tell what's a good answer and what's not and it can get annoying both for people participating and people reading.
Even if you mark those as subjective they would clutter the front page. Whenever you give people the option you need to consider defaults, if the default is not to see subjective questions then no one will ever see them, if the default is to see them we're back to square 1. What about search engines?
EDIT: It also so happens that some of the "good" subjective questions do seem to hang around, get attention, and get cool answers, so the system does seem to be working.
Really simple solution: put a checkbox on the right: "[ ] Hide posts marked as subjective" Make it bold and obvious, and far above the fold.
In the end, it was a huge distraction from what we should've been talking about instead: which questions are actually resulting in the creation of something useful?