4004
Well, just looking at the usage statistics, destroyed is below 100, while demolished is in thousands. iD correctly interprets demolished (split line contour), but doesn't know anything about destroyed. 
Ideally this should migrate to a scheme like building:demolished=yes to help renderers, but that can always be done automatically, not with a note on 2 small buildings in an industrial estate somewhere in eastern Europe.
You could mail the tagging mailing list, or start a discussion somewhere, and I'll gladly join in. Discussing it in note comments is hardly productive