Nope! The SE robot does a few things with these.
Questions with no upvoted answers are bumped to the front page in pairs at random. I believe two questions are picked every four hours. This is intended, in case anyone happens to have an answer.
I believe there is a cleanup process that deletes these after a time if the question also has a non-positive score...
The rules for deletion of these questions are here:
How does deleting work? What can cause a post to be deleted, and what does that actually mean? What are the criteria for deletion?How does deleting work? What can cause a post to be deleted, and what does that actually mean? What are the criteria for deletion?
Of course, you can certainly vote to delete based on a custom close reason, but I personally won't second it.