Deleted posts won't be restored. Just move on and improve your next posts or comments. Try not post redundant and outdated replies.
I posted two times with a spot on reply that was most certainly on topic yet some fool feels the need to delete my posts.
It's rubbish.
Its either the moderator see your post unrelated and irrelevant, or your reply is broad yet vague that may relate but has too many flaws to be in that post.