Current issues with copyright assignments:
- David Michael never started the process.
 - Kalle Olavi Niemitalo (contribution contribution) does not want to assign copyright
 - Olaf Buddenhagen, faced with process issues, gave up around 2016 july 23rd.
 - Brent Baccala (cases #1160318 #1497319): does not want to assign all past+future changes, would rather provide code under a BSD licence, or assign copyright separately for each contribution (request-assign.changes).
 - Luca Dariz (case #1803259): process ongoing, sent form on 2022 Feb 1st, got answer on Feb 11th, pending completion.
 - Various main contributors consider copyright assignment an unnecessary burden, the Hurd being considered as never-to-be-key-software.