Code Armin Arlert

Named after Armin Arlert from the manga Attack on Titan|進撃の巨人: Is when a character is depicted as good natured and kind in the source material but depicted as a morally grey or morally evil and bad spirited in fan-fictions that relate to the source material. A code Armin Arlert is usually widley accepted upon by the fandom

This work includes a Code Armin Arlert.
I usually avoid books with Code Armin Arlerts.
Why is she reading works with Code Armin Alerts with them?