Orphan posts should not exist! That means we were not awake and somehow we were sure our ideas would be given anyway by someone else. We like to know about them.
What you do is add, "Really, no one has a comment?" or the like and that orphan will come to the top. It will then get attention. If a post is truly nutty/worthless etc, then we can delete it since no one else's time is invested there. What we don't like is to delete critical early posts without which the chain of comments is broken and the whole thread is made useless. I can make changes which keep the sense of the post, but removes material which on second thoughts would have been better not said, as long as the latter was not key to discussion.
If the post in question and associated posts are really not part of photography discussion, we might delete them on request. However, we a troubled by any alterations except for civility and syntax.