[Tagging] No proposal labeling

[edodd at billiau.net]

> Hi, John Smith showed me, that it would be good to discuss the usage of
> the {{no proposal}} template even if I thought that I allready talked
> about here
> http://lists.openstreetmap.org/pipermail/tagging/2010-August/003518.html
what do you think that "no proposal" means?
does it mean that it is not official?
does it mean that a tag is commonly used and its meaning is commonly
understood and still not documented?
does it mean that its not on the wiki so it doesn't mean anything?