[Tagging] Tag:bicycle accident=true

[Pieren]

Someone added last night a unique contribution in the wiki about a new tag:
http://wiki.openstreetmap.org/wiki/Tag:bicycle_accident%3Dtrue

If we believe taginfo stats, this key has not been used until now. The
wiki page is also orphan.

Is it a good idea to keep such tag in the wiki ? Should we delete it ?
or forward the readers to some of the existing 'hazard' proposals ?

Pieren