<html><head></head><body>Thanks for sharing. I have no intention of contacting the user in question. It was just an illustrative example.<br><br>I don't know why this was posted to the tagging list. I intend to keep this discussion on the talk list so please respond there to keep the discussion together.<br><br><br><div class="gmail_quote">Cj Malone <me-osm-tagging@keepawayfromfire.co.uk> skrev: (22 augusti 2020 10:51:10 CEST)<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">On Sat, 2020-08-22 at 09:32 +0200, pangoSE wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;">Building upon it can lead to strange things. E.g. <br><a href="https://www.nyteknik.se/popularteknik/mystisk-jatteskrapa-dok-upp-i-flygsimulator-6999771">https://www.nyteknik.se/popularteknik/mystisk-jatteskrapa-dok-upp-i-flygsimulator-6999771</a><br> (building:levels=212 was entered erroneously and committed to the<br>database without any kind of QA follow-up. If someone knows the<br>osmid I would like to know how long this error was present in OSM)<br></blockquote><br><a href="https://www.openstreetmap.org/way/712475718/history">https://www.openstreetmap.org/way/712475718/history</a><br><br>1 - It was introduced by a novice mapper, presumably as a typeo.<br><br>2 - Nikolas von Randow fixed it about 9 months later, presumably with<br>some kind of QA tool (maybe just a overpass query).<br><br>3 - Another local novice mapper also edited it, and fixed another issue<br>at the same time. Presumably noticed via a rendered map.<br><br><br>Before criticising the mapper, it should be noted that it was a novice<br>mapper and the existing building data in the area isn't of great<br>quality anyway. This wasn't a regression. And accidents happen anyway,<br>I've done a similar thing via StreetComplete where I entered the house<br>number in the building levels quest.<br><br>The big companies doing QA on OSM data (Mapbox and Facebook) have a<br>high focus on vandalism. They are trying to stop "Jewtropolis" from<br>ever happening again.<hr>Tagging mailing list<br>Tagging@openstreetmap.org<br><a href="https://lists.openstreetmap.org/listinfo/tagging">https://lists.openstreetmap.org/listinfo/tagging</a><br></pre></blockquote></div></body></html>