For next - I understand that you went ahead with the removal because you did not get any reply. However, it would still be great to have this information back onto OSM. How would you suggest for us to do this?  

Also, I have a couple of days ago started a post on to the OSM forum to ask for help with the tagging of damaged buildings. It would be great if you could as well share some of your thoughts there to come to a solution for this one too.  Here is the forum post: https://community.openstreetmap.org/t/mapping-damage-on-openstreetmap/129704