[OSM-talk] New proposal: Bad data

[Someoneelse]

Ondrej Novy wrote:
> 2009/8/26 John Smith <delta_foxtrot at yahoo.com 
>     Anything tagged source=yahoo* or source=landsat should be treated
>     worst than source=survey and people should source the data properly
>     otherwise others will assume the data was traced if hi-res imagery
>     is available.
> 
> are you sure? What about really old survey and newest image from yahoo? 
> :) It doesn't implied that yahoo is older then survey!

There's also the issue of accuracy.  I can only speak for the UK, but 
Yahoo pictures of most areas here are too low resolution to do anything 
useful with beyond saying that "feature X exists, and it's within a 
hundred metres or so of here".  It's better than nothing, but only just.

Cheers,
Andy