"Welcome to Stack Exchange. Your question has been closed."
So goes the old joke. Here's a classic example of a post from someone who's clearly not very tech savvy, looking for help with a problem.
Clearly, no one is going to post an 'answer' that will solve the question, but in the absence of more information, might an 'intermediary answer' actually be a better response -- both for the questioner and the site in general?
"You need to provide us with the following information, but in the mean time, take a look at these canonical reinstall-the-OS answers / Apple Support docs".
This answer could then be re-written or deleted once more information comes along.
And if we're closing questions to prevent low-quality answers, then couldn't we just delete the low-quality answers instead?
Closing the question immediately seems a bit unkind, and I suspect there are many people who don't return to fix their first question, because they find the 'response' unhelpful, and just assume that SE isn't for them.
At the least, perhaps leave a comment asking for more info, but leave it open for a week?