The post claims it was an algorithm, but this could easily be a human mistake. Maybe someone reported the comment (either maliciously or ignorantly), then a moderator, unaware the user was writing in German, suspended the user.
Reminds me of the time locally when group of people tried to change a local river's name from "Fishkill" to "Fishsave." The name Fishkill is Dutch for creek/river of fish.