2017-10-03 16:02 GMT+02:00 Thilo Haug OSM <th...@gmx.de>:

> You're talking about things like this ?
> http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dinsect_hotel
>
>

I don't see an issue with this, it has 105 instances tagged and
documentation in several languages. I'm not very interested in the topic,
but apparently, a group of people is.



> Have those all been discussed ?
> http://wiki.openstreetmap.org/wiki/Seamarks/Seamark_Object_Usage
>


the seamark chapter is also somehow problematic (for me mainly because they
are using this seamark prefix for everything sea-related, be it a seamark
or not).
But there is an active community behind this effort, for a long time, so
they have some kind of "historic" bonus. There is also a whole ecosystem
around this, with dedicated editors, maps, apps, etc.


> When is it "low usage" ?
>


it depends on numbers both in OSM and in the real world. Something rare
will never be tagged in the millions, but a tag for a waste basket that
would be in use just a few thousand times would be "low usage".



> And how should usage appear (in a structured way),
> if it's not documented ?
>

by promoting the tag and by documenting it with a "proposal". The way tags
are invented is either by usage or by documenting it via a proposal.



> I didn't understand how those (motorcycle) tags might cause others to be...
>


The main problem with the "motorcycle friendly" tagging is that it is not
verifiable in general. It might be verifiable in exceptional cases, but
this kind of tag leads easily to subjective tagging in a rating and review
style, rather than "facts". If there is room for something like this, you
'd have to be super cautious in order to warn people to apply this only
when verifiable. It was suggested you'd rather tag individual properties
like the availability of motorcycle parking, a drying room, etc., which
objectively describe available features, and which could help ideally
everybody, not only motorcyclists, e.g. a drying room is not only related
to motorcyclists, but to everybody with wet clothes.

Cheers,
Martin
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