[Tagging] Representing "altimetric quotas" in OSM

[Warin]

On 18-Jan-17 09:28 PM, Shawn K. Quinn wrote:
> On 01/18/2017 04:23 AM, Martin Koppenhoefer wrote:
>> 2017-01-17 18:35 GMT+01:00 Nelson A. de Oliveira <naoliv at gmail.com
>> <mailto:naoliv at gmail.com>>:
>>
>>      "ele" without any other attribute is valid?
>>
>>
>>
>> yes, you can do it, but there's the risk that following mappers will
>> move the node around if there's nothing visibly identifiable attached to
>> it, and the positional accuracy will remain opaque. (Some editors will
>> prominently highlight the node if it has any tag on it, others will not
>> make it very evident and someone might move it without noting).
> JOSM will highlight a tagged node it doesn't recognize as something else
> in bright cyan. iD, as of what I remember from the last time I used it,
> does not differentiate between an untagged node and a tagged node it
> doesn't recognize.

It would assist if the simple node with tag 'ele' on it also included the source so it can easily be checked and possibly a note to explain it.