[Talk-GB] useless survey?

[malenki]

Since the British forum seems little frequented compared to the British
ML I publish what I wrote there¹ here once again with tiny enhancements.

This summer I hiked Snowdonia National Park from Machynlleth to Conwy.
Doing so I collected about 843 waypoints in Wales and 140 in the Restof
GB. As usual I uploaded my logs to OSM and quite an amount of the
pictures to Mapillary (the rest will follow soon). I also started
adding and enhancing highways and POI to OSM.
Now user Dyserth had added some data I could not verify in reality.
Although this holidays I wanted to do a little less on OSM compared to
last year (which wouldn't be hard to achieve :)²) I could not resist to
capture three gems of highway=track, tracktype=grade1 like this:
http://www.mapillary.com/map/im/QkMEYGK64gxtupnGWfHwXA/photo
https://www.openstreetmap.org/way/244474174/history

Also the names "Ancient Trackway" and "Old Coach Road" on a lot of
different ways caught my eye. I changed these and a several other ways
to what I believed what I found and walked and also asked the previous
mapper for his sources. After I found that he reverted one of my
changesets and edited some more data to IMHO not matching reality I
wrote a second message which he replied to rather unhelpful and not too
friendly. The messages I sent can be found here:
https://www.openstreetmap.org/changeset/33841330

Just as I wrote the posting for the forums Dyserth commented another
changeset and edited the data in a way which confirms my opinion to
skip mapping Wales: http://www.openstreetmap.org/changeset/34006163
In short: After I split a way its new way segments shouldn't have the
name which was there before I even touched it.

This makes me think twice if I should care to map in Wales anymore
since it seems Dyserth
* interprets reality (if he knows it at all) to his liking
* doesn't want to name his sources neither in changeset comments nor on
  request
* seems to think he needs to protect "his data" and thus will change
  (not only my) contributions back to what he thinks is best. 

I can think of better ways to contribute to OSM than to add stuff which
I can be certain will not be there for long.
By the way: For mapping only 1,5 years Dyserth has made an impressive
amount of edits. But I doubt that he collected all the data by ground
survey nor has – regarding what I saw on the ground and mapped –
reliable sources.

Best Regards
Thomas

¹ http://forum.openstreetmap.org/viewtopic.php?pid=540545#p540545
² http://www.openstreetmap.org/user/malenki/diary/23935