Yes, yes, a thousand times yes. The mods are power crazed and addicted to closing questions. If people are answering, and upvoting those answers, or the question, then the question is worthy and shouldn't be closed. End of story.
SO is still awesome, but flawed. And their mod system suffers from the same problem that has plagued every mod'ed site: mod convergence, essentially turning the site into their own echo chamber, and stagnating it.
It also seems like they have a lot of help vampires as I see many questions where the correct answer doesn't have even a single upvote.