I am a long-time contributor to OSM in Germany and elsewhere. I have worked on a lot of different OSM software, and I was the JOSM maintainer from Imi's departure until Dirk took over. I'm also a regular OSM conference visitor, having participated in the first four "State of the Map" conferences and lots of other events. The pet image to the right of this paragraph was added by someone else and I will not remove it for fear of being turned into a haddock.
Together with Jochen Topf, I wrote the world's first book on OSM which is now also available in English. The two of us also founded Geofabrik (wiki link, web page), an all-round OpenStreetMap consultancy and software development firm in Karlsruhe, Germany.
I believe that intellectual property is overrated.
Even though I think that PD is the superior choice in many ways, I support the planned move to ODbL. It's better than what we have now anyway!
Fixbot and Reverts
I used to run a little "bot" every now and then to fix problems in OSM but I have stopped doing that; I think that automated corrections should only be done in exceptional circumstances. If you find older changes in the database that bear the signature "created_by=fixbot" and have been changed by me (that's "woodpeck") then you might find more information here: User:Frederik Ramm/Fixbot Log
I have written a number of tools that help in isolating and reverting certain changes or changesets, rolling back vandalism and so on. I use them in my work for OSMF's Data working group but I am also willing to help when contacted privately. The tools are available in SVN, but please only use them if you know what you are doing, and feel confident you can fix anything you might break!
Ich bin ein altgedienter Mapper in Deutschland und anderswo. Ich habe an verschiedener OSM-Software mitgearbeitet, und ich war der JOSM-Maintainer nach Imis Weggang, bis Dirk den Job uebernommen hat. Ich besuche regelmäßig OSM-Konferenzen; ich habe an den ersten 4 "State of the Map"-Veranstaltungen und vielen anderen Events teilgenommen.
Zusammen mit Jochen Topf habe ich das weltweit erste OSM-Buch geschrieben, das jetzt auf deutsch und englisch erhältlich ist. Wir haben außerdem die Geofabrik (Wiki-Link, Webseite) gegründet, ein Beratungs- und Software-Entwicklungs-Unternehmen für OpenStreetMap-Anwendungen.