Jens, - you missed the points: We had too many bad merges on Geni because people did not check details like the name of parents, and thought they were the same or close related just because the names looked like, - details that has been demonstrated just recently in these discussions, so we as managers started to add the patronymic name as middle names, which helped a lot. You can ignore them by selecting not showing middle names in your preferences, and since the number of new duplicates seem to be reduced, except by management hunters, we can probably remove them.
Second point was that there was not sources on this profile even if it obviously is some, - his burial as Hans Christian Lange you find as a record match.
Most discussions can be avoided if people add sources instead of just facts.