[Tagging] tagging for decaying features

[Kevin Kenny]

On Wed, Jan 3, 2018 at 9:27 PM, Warin <61sundowner at gmail.com> wrote:

> In which case I like marc tagging solution;
>
> building=school
> building:use=residential
>
> That tags 'what is on the ground'.
>

To me, it seems to presuppose an unrealistic amount of cleverness
on the part of the renderer, particularly since 'building:use' is not
a common key at all.

By contrast, adding 'historic' and adjusting tagging to current use
is already a common practice among those who fix repurposed
features from the GNIS import. I didn't invent it.

'disused', 'abandoned', 'demolished', 'ruined', are all preferable
to 'historic' if they're accurate. Sometimes none of them fits.
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