https://www.pcgamer.com/rainbow-six-siege-players-want-forgiveness-for-teamkilling/

Following the implementation of a new ban system for teamkillers, fans of Rainbow Six Siege have been pleading to Ubisoft to let players “forgive” accidental teamkilling. The new system, deployed in a September 18 patch, inflicts a harsher penalty on players that teamkill twice in the same match, banning the player from all matchmaking for 30 minutes. Subsequent offenses ban the player for one hour, two hours, 24 hours, and then a whole week.

Any veteran Siege player is happy to see harsher punishments for teamkilling, a type of griefing that's particularly painful in an FPS where players don't respawn after dying. However, some worry that a zero-tolerance, automated system can introduce errors. These players suggest that anyone who's teamkilled should be given the opportunity to forgive their attacker.