This is uncharitable; one merely filters isolated comments, the other temporarily* bans humans from an entire social media site.

If you click through to their offending thread, the AutoMod profile they built has a field value of "action: report". As I understand it, that means it does nothing but forward the flagged comment to a human moderator for review. As benign and judicious a use of automation as you can get.

*edit: s/permanently/temporarily/ (sorry!)