Using a crude nickname for someone is in fact a crime in Germany: https://www.gesetze-im-internet.de/englisch_stgb/englisch_st... If social media companies delete such content, they would ironically be guilty of destroying evidence of a crime, unless they also report it to the police.
Podcaster Benjamin Berndt was called from Northrhineswestfalian Countrymedia institution (Landesanstalt für Medien NRW) to edit his uncut interview with opposition politican Björn Höcke afterwards.