[Tagging] Removal of rendering for waterway=wadi

[Warin]

On 14/10/19 17:58, Joseph Eisenberg wrote:
> It is proposed to remove the rendering of waterway=wadi from
> Openstreetmap-carto, the style used in the "Standard" layer on
> openstreetmap.org - see
> https://github.com/gravitystorm/openstreetmap-carto/pull/3931
>
> As discussed back in January 2015, the tag waterway=wadi is ambiguous,
> because it is was used both for dry valleys and for intermittent
> waterways. See https://lists.openstreetmap.org/pipermail/tagging/2015-January/thread.html
>
> http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dwadi has been listed
> as deprecated since then.It is recommended to use
> waterway=river/waterway=stream + intermittent=yes for waterways,
> natural=valley for valleys.
>
> Since that time the usage of waterway=wadi has dropped from 18,000 to
> 6,000, while intermittent=yes + waterway has increased from less than
> 800k to over 2 million now.

Intermittent is being used with the key seasonal=*.
I think you may find the increase in use of intermittent may be from this dual tagging.
I could say tagging for the render.