Sometimes off-topic questions get fast answers that actually do answer the question, but they're irrelevant to the site. An example is this post with 7 upvotes on programmers which explains that you can't install OSX on an iPad.
Personally when I've seen these as a mod I tend to convert them to comments after closing the question. Yes, mods aren't supposed to judge the correctness of answers, but these aren't answers in the scope of the site. I also don't approve of positive reinforcement (upvotes/rep/badges) being given to people who are engaging in bad behavior (answering off topic questions) and encouraging other bad behavior (asking off topic questions).
As clarification, these answers also mean the off topic post will never be deleted. Quoted:
If the question is more than
30 days old, and ...
- has -1 or lower score
- has no answers
- is not locked
... it will be automatically deleted.
So no, I can't just wait for the post to be auto-deleted. In fact, these off topic answers prevent the off topic question from being deleted. By converting the answers to comments the question will be auto-deleted.
My other options are manually deleting the whole question which means
- The asker doesn't see the post was off topic. It's just gone. (And they might ask it again)
- I'm being even more aggressive in policing the content
- I'm not letting off topic stuff fall out of the system naturally.
Should posts like this be converted to comments when the question is closed as off topic?