[Tagging] Source tag - deprecated for use on objects?

[SomeoneElse]

Serge Wroclawski wrote:
> There are many people (myself included) who believe that source /on
> objects/ is not useful, and most OSMers have moved away from using it,
> and toward source on changesets.
[citation needed]


> So then what do we do? We could have a source tag for every tag...
>
> source:cuisine ?

No, you'd only have a source for tags that aren't obvious from survey.

Taking your building example, if an armchair mapper adds it it makes 
sense for them to use e.g. "source=Bing" - it tells local mappers that 
it has not properly being surveyed.

Once it has, it'd probably end up as "source=survey" (or perhaps 
"source=survey;Bing").  If there was some legal designation that isn't 
visible on the ground but could only be obtained from some other source 
then perhaps that deserves a separate tag.

If you're only an armchair mapper and only mapping from one source then 
changeset source tags might be ideal.  However if so, (unless you're 
mapping e.g. the Central African Republic *) you probably need to get 
out more :-) .

Cheers,
Andy

* http://www.bbc.co.uk/news/world-africa-20889136