I sometimes dread posts like these:
But it’s clearly not a good post. If you’re not managing a Facebook group it’s irrelevant and if you are managing a Facebook group there is nothing in the post compelling you to answer. What does he want? Is he trying to sell you something? You would need to post at least twice to be able to help.
These kinds of posts aren’t quite spam, but they’re not useful neither. And every post which isn’t useful makes the community less relevant. Once your community has too many of these posts, the overall quality of the people participating and their contributions declines.
This is where it’s better to maximize for quality rather than engagement. Set standards for new posts. Ensure members provide more context (who are they, what are their goals, what drives them to post this question now) and are more specific (they ask exactly what information they need and provide as much detail as possible).
Just because an item isn’t posted with bad intent doesn’t mean it’s not harmful to the community. You can safely ask these to be removed or updated.