Thanks for the contribution. A more appropriate & machine-readable way of tagging this might be with a [lifecycle prefix] on the building. You can read up about these lifecycle tags on the wiki page I linked, but it sounds like `destroyed:building` would work here if the building still remains, otherwise `demolished:building` if it's been demolished since the fire but still shows up in aerial imagery.

Thanks again, and welcome to OpenStreetMap!

[lifecycle prefix]: https://wiki.openstreetmap.org/wiki/Lifecycle_prefix