TBH, even when she was more of just another Bat-villain I found the character annoying because of her voice, so her rising in prominence meaning I have to hear that of that type of voice more is a reason for me.
Nonsense like Injustice is what pushed me over into the category of flat-out disliking the character in general. She's pretty much female Batman, anytime she gets paired off with a another DC hero character, they got to be written as actively dumber or lame to make her look "cool" or "funny".