[Tagging] Contact:* prefix

[Andreas Goss]

> Isn't so addr:
> as well?

I actually don't like the addr: either. Because in most editors it means 
I have to type addr:s to get autocomplete, while it just have to type 
"ph" to get phone. Especially on mobile with the : it's not that great.

In addition we have so many tools and good editors these days that check 
for missing tags isn't that big of a deal. Also a lot of stuff like 
country or state or maybe even postalcodes in the future can be taken 
from boundaries so only a few addr: tags remain.

I mean we are at a point where it makes no sense to reverse it, but I 
honstly don't even see the big advantages there. And as Martin pointed 
out it was still more logical than contact. Ever tried to contact a 
company on Facebook or Twitter? Well, good luck.
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openstreetmap.org/user/AndiG88
wiki.openstreetmap.org/wiki/User:AndiG88‎