As a ruby-sig ML admin, I have started to receive a lot of (14 since yesterday) subscription disabled on ruby-sig notifications with xxx yyyy <xxxyyyy@zzz.org>'s subscription has been disabled on ruby-sig@lists.fedoraproject.org due to their bounce score exceeding the mailing list's bounce_score_threshold. Given the extent, I suspect this might be something on our side then on the other side.

Or was them some update which started to disable old nonfunctioning accounts? Because surprisingly, the first notification refers to email from 2024-09-19. And I actually recognize some of the emails of former RHers, who are not with RH for ages.