Am I the only one under the impression that Screwball is actually what Discord had done to Diamond Tiara. I mean, they both have the same mane and coat colors, and she is never seen again in the show after Return to Harmony Pt. 2. Or do I only just hate that filly enough to just want to believe that Discord had enough sense of justice in him to give her exactly what she deserved.

You might just hate her enough.

Because is 'being Screwball' really a punishment?