[Talk-GB] License change & anonymous edits

[Ed Avis]

Richard Fairhurst <richard at ...> writes:

>Those with an eye to mischief may like to ponder how one might code (i.e.
>sweat-of-the-brow) and run a bot which reviewed streetnames and other
>attributes against OS OpenData, and tagged them odbl=clean if they were
>found fitting.

Even after performing this comparison you are still relying on the
work of the person who verified these things on the ground, or against
aerial imagery.  You could, however, make a fair clean-room remapping
by ignoring the existing tags and geometry completely and taking them
entirely from OS.

Personally I've tagged source=OS when relying only on OpenData and not
additional ground survey or aerial photos; however, there is still
some 'sweat of the brow' involved since matching up the streets
against OS involves some judgement calls and common sense - it is not
a blind or fully automatable process.

--
Ed Avis <eda at waniasset.com>