Final answer:
Inconsistency in a character can detract from the reader's appreciation of them.
Step-by-step explanation:
The quality in a character that might detract from your appreciation of him or her is inconsistency. When a character behaves in a way that is inconsistent with their established traits or motives, it can make them less believable and relatable. For example, if a character is portrayed as brave and selfless throughout the story but suddenly acts cowardly and selfish in a crucial moment, it can undermine the audience's appreciation of that character.