I have decided as a result to have a time with comments not being checked on any posts before they are left. If this proves to be an invitation to mega loads of spam then I will re think. But for now I would rather risk that then have someone think I didn't care about their (very kind in this instance) comment.
Comments once deleted cannot be retrieved at all. They are gone for good I have now found out. This reminds me of our sin. When we come to the cross, to Jesus, and ask his forgiveness our sins are deleted. And they too cannot be retrieved. Gone for good! Amen. Isn't that good to know!
If you are like me once you have taken your sin to the cross and is deleted you try to retrieve it every now and again. The true meaning of grace is that once it is gone it is really gone. It's like it never happened. One day I will get that into my head I hope and stop trying to retrieve forgiven sins.