Kira is supposed to be this tortured and beaten soul that has endured horrible Cardassian treatment. Nana Visitor apparently doesn't know how to get this across. Her take so far is "Be angry and bitchy at everyone, and get into fights to take out that anger on someone, anyone"
Actually, that is
how some people respond to trauma. But I'm sure with you re Bashir.
Enjoy your re-watch!