On Fri, 5 May 2017 12:34:14 +0200 Martin Koppenhoefer <dieterdre...@gmail.com> wrote:
> 2017-05-05 12:24 GMT+02:00 Frederik Ramm <frede...@remote.org>: > > > I think that even if they are careful enough not to use their real > > name, the identity of a mapper will often be easy to reconstruct if > > you have access to just a little bit of extra information (might be > > as little as a name on a doorbell). > > > > > if I look at my "local area" in hdyc, there are probably a million > people living within, but even if it were just a few thousand it > would effectively not be possible to look at all those doorbells > (where you won't have your name anyway if you are really concerned > about privacy) and get a clue to which username this might be > related. If you are living in a _very_ remote area (which most > mappers are not), in very rare exceptional cases it might be possible > to see who is which mapper, and that he mapped this remote area. > Congratulations. You're seriously underestimating how much information it's possible to get from editing patterns. There are a quarter-million people in the area I keep an eye on; maybe four of them are active OSM contributors. Just from looking at changesets, I know where two of them live: which house for one of them, and the general neighborhood for the other. (I also know which university a couple dozen hit-and-run editors attend, and can make a good guess at which class they took last fall.) -- Mark _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
