Haiti: importance of earthquake:damage tag


More and more earthquake related features appear on the map without the earthquake:damage tag. Is this tag:
a) important; it should be added,
b) nice, but not really necessary
c) without any added value; delete them all?

Bonus question:
(When I read about Haiti mapping from this post, I figured that there would be a lot of questions regarding this in the upcoming days and a dedicated forum to address them, but as it turns out this is not the case so far. Or are they all talking in IRC’s and on mailing lists?)

I believe most discussion is happening on http://lists.openstreetmap.org/listinfo/talk-ht