I feel a bit torn here.
On the one hand, when some app/OS supports "dark mode", I typically give it a try, and very often (not always) stick with it. So, yes, having that choice is a very useful thing. And yes, I understand that it was a lot of effort, and that maybe other people were really waiting for it. So I get why you dedicate so much "blog space" talking about it.
But then: I think I never abandoned a tool because it didn't support a "dark mode". I pick my tools, and my online communities based on their core features, and the value they give to me.
Example: I recently stopped using quora, and sent 4000+ answers down the drain. Not because quora doesn't support dark mode, but because I got fed up with many subtle technical issues, and most importantly: because moderation there is absolutely intransparent and inconsistent. And because there is basically zero open communication between "the company" and "the community".
Meaning: I see different priorities, especially fors stackoverflow, like:
- Improving search
- Review queues, and the overall workflow around the queues
- And sure: improving search (to really reduce the number of duplicate entries coming in)
Thus personally, I would have wished for these things being addressed before "dark mode".
On the other hand: neat UIs attract users, and users ideally translate to revenue, which pays your salaries and the infrastructure that runs our content. So I accept this (imho: over)focusing on "dark mode" as real world necessity.
Beyond that: I very much appreciate that blog post. I like how you use that specific feature to show us how you collected different sorts of feedback.
That is the thing that really matters to me here: that you are transparent about that process!
Keep doing that, and we will be with you.
And yes, I agree with other users: I very much doubt that your new "dark mode" send so many new users to stackoverflow. I find it more likely that "corona" driving millions of people into "isolation" has something to do with that spike.