This wiki user has been created to facilitate adding auxiliary data into the OSM database without 'hurting' other people with these tags.
There  is a long discussion about things that should / should not be stored in OSM. One possible solution, that I believe, can satisfy both groups, is to prefix all tags, that should be separated from the standard OSM data, with aux: to mark them auxiliary. (This idea is also from the discussion: .)
All these auxiliary tags will be described here soon.