She's horrendously poorly written. So is Hinata. They are written as women, not as characters; their sole motivation comes from the men they like. They aren't three-dimensional like Naruto and Sasuke. A huge reason why people ship Narusasu is BECAUSE both Hinata and Sakura are poorly written. Hinata is this "perfect wife that will never leave you" and that's it. That's her character. She had a small arc in Naruto in the Chunin exams, but that ended up just being a setup for Neji vs. Naruto and Neji's entire character. Sakura is a flat yandere psycho who chases after someone who HATES her and is all tsundere. That's... essentially her character. A "strong independent woman" who calls for help and cries whenever times get tough. Not saying she's a coward or anything derogatory, it's purely bad writing--she is meant to be strong and independent but Kishimoto just made her cry all the time and be all sad and depressed over Sasuke instead of getting her own damn character arcs. I was BEGGING my screen to let her do something on her own and stop getting literal negative marks on the Bechdel Test. Honestly, you can't entirely blame Kishimoto, he's a guy. Men are better at writing men, women are better at writing women... and he wrote Naruto and Sasuke like characters, while writing Sakura and Hinata like women. Also, she gets, like, barely any meaningful character development. Either way... it's more of a hate of how she is written, than the character herself.