Here's a self-answered question. I'm aware that while highly non-typical, self-answered questions are nevertheless acceptable. But in this particular case it looks like the answer was provided immediately after the question've been asked.
What are best practices for moderating such self-answered questions that the author obviously knew the answer and pursued some different goals (whatever they are)?
I want to emphasize again that the question is not about self-answered questions, but rather one with about immediately provided answers.