Words shouldn't perma ban someone (with some exceptions ofc)
Death threats racism suicide encouragment (add in irl problems I missed to say) I believe it should Allow such ban.
Just being a flat out jerk in game should only be and yes ONLY be chat restricted.
Feeding trolling (while passive aggressive doing it too someone has to review those cases) stealing cs tattletaling ally wards/location using champ skills to grief on purpose (kench W). (Combination of these and anything I forgot) should be punishable.