[Tagging] RFC rewritten proposal Via_ferrata_simplified

[Richard]

On Tue, Mar 05, 2019 at 05:09:31PM +0100, egil wrote:
> The 3 main goals of this proposal are:
> 
> 1. the removal of the special tag highway=via_ferrata,

highway=via_ferrata is supported by almost all renderers(*) and you will
break them.
Not only is there no need to remove it but it is highly counterproductive.

via_ferrata_scale on a highway=path would be considered (yet another) troll 
tag so that would be a step back.

Both tags are marked in use since a long time, just let people map whatever 
they want.

(*) Those which are targeted for outdoor users display it and those targeted for
general audience deliberately don't

Richard