Please don't do this - there's a reason, why I put an additional POI on some objects I map. 
It is to provide this information in mobile apps (like OSMAND~) - and these objects ARE POI.

If you like, you can have a look on my long explanation (to another user):

Hi there,

see it as a kind of service I provide ;-P

As mentoined before I use OSM primally on my mobile via OSMAnd~, while exploring lonely to lost places.
I put additional nodes on buildings/structures/specific dangers of interest to provide more information for OSMAnd~Users via the "point of interest" function of the app.
Otherwise it wouldn't be possible to get this infos while navigating or exploring offline, because the offline dataset of OSM doesn't provide this level of detail for 'simple buildings' etc.. Keep in mind that in some areas I've mapped there isn't any cellular radio avialable - eg. in the Southern military facilities of Lastovo.
After all I can't see any disadvantage in this procedure. Let me know, if you find one.