This question was inspired by this deleted answer: https://philosophy.stackexchange.com/a/59184/4555 . The answer was both correct, and sourced with a link. In fact, it was better than the existing answers. I was actually planning on providing the same answer, until I saw it had already been deleted twice.
In this case it was also a new contributor. It was deleted, without comment, by a moderator (@GeoffreyThomas). This is not a good way to be welcoming to new members. In my opinion, downvotes, helpful comments, and edits should all be tried before deletion (except in the case of bad faith posts, abusive posts or spam). Deletion should be a last resort for a truly irredeemable post. And, if a good faith post is deleted, a comment should always be provided.
Note: I have edited this question to make it less specific to a particular post, and more general.