To be fair... she -was- rushed and added in at the last minute.
I didn't mind the character too much. My biggest complaint is they focused on her way too much as if to compensate for her not being around before. But every show just about does this with a new character, so that's hardly unique.
Ezri and Bashir hooking up does have "consolation prize" written all over it though.
However a thread with the title "worst character in DS9 history" does strike me as border line trolling.... being speechless because someone has a different opinion than you is a bit over the top too. You could have started a discussion on the topic in a more civil manner.