[db-wg] Clean up unreferenced maintainers (after 90 days)

Dear Working Group, In the light of data protection we already clean up unreferenced organisation, person and role objects, and also mntner-role and mntner-person pairs, 90 days after such objects become unreferenced. So-far unreferenced maintainers are not cleaned up. We have about 8k such objects in the database. These objects are often syntactically incorrect and poorly maintained - so we would like to clean them up automatically 90 days after they become unused. Please let us know if you see any issues with this. Kind regards, Tim Bruijnzeels Assistant Manager Software Engineering and Senior Technology Officer RIPE NCC